Realizar ejercicios del Presente Perfecto, colocar el verbo que se encuentra entre paréntesis en la forma

correcta. Luego las reescribas en forma interrogativa y negativa:

1. The electrician (repair) ………..…..…….. the lighting system.

2. A thief (steal) ………………………… Mary’s purse.

3. They (accept) ……………………..… credit cards.

4. We (sing) ………………….…..… different songs at the camp.

5. The player (hit) ……………………..…… me with the ball

6. The students (print) ……………….….…..… the magazine.

7. The children (swim) ……………....…… in the lake.

8. The inspector (show) …………………….…… us the secret files.

9. Susan (get) …………………..………….… $50 as a prize.

10. The passengers (watch) ……..……….……… many movies.

11. He (build) ………………………..… a new department.

12. Jonathan (buy) ……………….…… a new car and a new house.

13. The President (visit) ……………….……..the museum.

14. The secretary (ask) …………….……….. the boss to sign the letters.

15. Sarah (work) ………………….……...for a building company.

16. The workers (clean) ……………….………… the theatre.

17. Jane (cut) ……………………….…..… her finger.

18. Frank (fix) ……………………… his bicycle.

19. Peter (eat) ………………..…..… a lot of sandwiches.

20. My brothers (spend) ………………………… their holidays abroad.

21. Sue (lose) …………………… the key of her car.

22. Peter (save) ……………………… almost $7000 for a new motorcycle.

23. Jenny (finish) ……………………..…… her homework.

24. Some boy (break) ………………….……… the windows.

25. My mother (buy) …………………………new glasses.

26. I (read) ………………….……a hundred pages of the book.

27. My niece (find) ……………….…… a valuable necklace.

28. The town(suffer) ……………………… terrible floods.

29. Martha (think) ……………………very carefully her situation.

30. The factories (contaminate) ………………..… too many rivers.

31. Sofie (study) ………………….…… so hard for the final exam.

32. We (write) …………………..…… a lot of beautiful poems.

33. Margaret (travel) …………….………… to Italy.

34. I (go) …………………..… to the cinema.

35. They (bring) ………………….… a lovely dog.

36. Sam (arrive) ……………………late to work.

37. Mark (visit) ………………….… wonderful cities in Europe.

38. My mother (make) …………..………… a nice dress for my sister.

KEY WORDS: ever, never, just, already, yet, still, since, for with the present perfect tense.

We use ever in interrogative sentences:

a. Have you ever been to the United States?

b. Have you ever traveled by train?

c. Have you ever failed a class?

We use never in affirmative sentences: but the meaning is negative.

a. I have never cheated in an exam.

b. My son has never been to Moscow.

c. My brother has never gone to London.

We use just to express a recently completed action.

a. The cat has just caught a bird.

b. The guests have just arrived.

c. I have just finished my homework.

We use already to express that something has happened sooner than expected.

a. Don't forget to bring your book! Oh, I have already brought it.

b. The boys are going to pack, aren't they? No. They have already packed.

c. Is Adam going to buy a new car? No, he isn't. He has already bought it.

We use yet in interrogative and negative sentences and it suggests a time later than expected.

a. Have you done your homework? No, I haven't done it yet

b. Has your father seen your report? No, he hasn't seen it yet

c. Have the visitors arrived? No, they haven't arrived yet.

We use still in negative sentences to show an action or situation that has lasted longer than expected.

a. They still haven't left. c. She still hasn't forgotten what you did.

b. You still haven't finished!

We use since to express a point in the time.

a. She has lived here since 1980. b. Alice has been married since March 2nd.

c. They have been at the hotel since last Tuesday.

We use for to express a period of time.

a. I have worked here for five years. b. They have been at the hotel for a week.

c. We have taught at this school for a long time.

Fill in the blanks using ever, never, just, already, yet, since , for

1. Have you ________ been in America?

2. Do you hear the noise? The train has ________ arrived.

3. Your family has lived in Bogota ________ ten years.

4. No. Your cousin hasn't come to the party________.

5. Can you open the door? Oh, it is ________ open.

6. Your daughter has ________ returned home. You don't have to worry anymore.

7. Haven't you finished your food ________? No, I am ______eating mom.

8. I am a very lucky person. I have ________ had nightmares.

9. Tim has been a teacher ________ 1996.

10. Are you going to meet me at the shop? Yes, I am ________ there.

11. I have ________ realized how beautiful you are.

12. Would you like to have dinner with us? No thanks, I have ________ had dinner.

13. Have you ________ seen such a big ant?

14. I have worked here _______ several months, ________ 2003.

Complete the sentences with the correct form.

1. I __________a new mobile phone. (just/buy)

2. _____________ a cat without a tail? (you/ever/see)

3. My sister____________ sushi. (never/ eat)

4. We__________ your new tape yet. (hear)

5. How many words ____________for your language project? (you/write)

6. Sheila_____________ her breakfast yet. (Have)

7. What_____________ to the computer? (they/ do)

8. John and Alex___________ in France for 20 years.(live)

9. Where____________ my keys? ( I /leave)

10. Simon_____________ Pat's parents yet.(meet)

11. We__________ her an e-mail. (just/ send)

12. Where is your mother? She____________ to the supermarket.(go)

13. Simon_________to South Africa once. He wants to go there again. (go)

Fill in the gaps: since, for, ever, never

14. I haven't been to Erika's house______ May.

15. Lucas has worked in the bank_______ five years.

16. I have known him_______ I was six.

17. It has rained___________more than three days.

18. They have been married_________1999.

19. Have you finished doing your homework _________

20. I have known Martha ___________about two months.

21. You’ve___________missed Nazan! She was here ________a few minutes ago.

22. Mum:You must make your bed before you go out Martin.

23. Martin:I’ve___________made it.I made it in the morning.

24. Has you father___________ eaten raw fish?

25. Have you seen any good films____________?

Choose the right word to complete the sentences: for, since or ago

1. This house needs cleaning. We haven't cleaned it _________months.

2. I think I can't possibly learn Chinese. I've studied it ________two years and I still can't have

a sensible conversation.

3. Jim and Kevin first met ten years___________

4. Where were you? I've been waiting __________two hours.

5. I don't see my family very often. I haven't seen them _________Christmas.

6. Louise has been learning Greek __________she was fifteen.

7. Helen lived in London long time ______but she has been living in Madrid _____last summer.

8. My parents have had the same car ______ages. They bought it at least fifteen years _______

9. Fred has been phoning his boss ________ lunch time but he can't get through.

10. I'm fed up with this rain. It's been raining ________hours.

Tick the right sentences: correct use of just, yet, still, already

1. It's 11 and Mark hasn't still got up

2. It's 11 and Mark still hasn't got up

3. I'm expecting him but he still hasn't turned up

4. I'm expecting him but he hasn't turned up yet

5. He left his job but he has already found another

6. He left his job but he already has found another

7. Are you still doing your homework?

8. Mr. Green has just left his office

9. My new hairdrier didn't work properly. I've taken it to the shop already and got a refund

10. I don't still know his phone number

11. I don't know his phone number yet

12. Have you seen Brad Pitt's new film yet?

13. Have you seen Sam? He just has come looking for you

14. My friends went to the theatre but I didn't go with them because I've seen the play already

15. Do you still love me?

Fill in the blanks with just, already, since, for, or yet.

I’ve _______ finished putting the baby down for a nap and she is ______ asleep. And she’s fallen asleep ____?

(So soon?) That was fast! No, I was mistaken. She has not fallen asleep _______. She is still awake. She has

been quiet _________ I arrived, _______ ½ hour at least.

I’ve _______ made a fresh pot of coffee. Would you like a cup? No thanks, I’ve ____ had breakfast. (prior to

now) Ok. Well I have to have a cup because I haven’t eaten anything ____. This coffee has been ready here

________ hours, _______ 6:00 A.M.

The train has ________ arrived. Oh ok. I thought that I had _______ missed it and would have to wait for the

next train. (prior to now) I’m glad that it hasn’t left _______. I’ve been here _______ noon, and she has also

been here _________ a long time.

The store has _________ opened, so they are having an open house. That’s strange. I thought that it had

_________ opened last week. (prior to now) Have you decided what you need to shop for _____? No, I’ve been

so busy at work _______ we got that new account, that I haven’t had time to think about myself ________

several days.

Has the paint dried _______? No, I’ve _______ finished painting it. Oh, I thought that the paint had ________

dried. (prior to now) _______ when does paint dry immediately? Oh, I’m sorry. I didn’t know that it had been

drying only _______ a few seconds.

May I speak with your supervisor? Oh, sorry. I’m afraid he’s _______ left. Oh. (So early?) I didn’t think that he

had _________ left. I didn’t think he had left __________.

I have waited for him to get back to me ______ a week, ______ Monday, but he hasn’t returned my call ____.

ANSWER KEY

I’ve just finished putting the baby down for a nap and she is already asleep. And she’s fallen asleep already?

(So soon?) That was fast! No, I was mistaken. She has not fallen asleep yet. She is still awake. She has been

quiet since I arrived, for a ½ hour at least.

I’ve just made a fresh pot of coffee. Would you like a cup? No thanks, I’ve already had breakfast. (prior to

now) Ok. Well I have to have a cup because I haven’t eaten anythingyet. This coffee has been ready here for

hours, since 6:00 A.M.

The train has justarrived. Oh ok. I thought that I had already missed it and would have to wait for the next

train. (prior to now) I’m glad that it hasn’t left yet. I’ve been here since noon, and she has also been here for

a long time.

The store has just opened, so they are having an open house. That’s strange. I thought that it had already

opened last week. (prior to now) Have you decided what you need to shop for yet? No, I’ve been so busy at

work since we got that new account, that I haven’t had time to think about myself for several days.

Has the paint dried yet? No, I’ve just finished painting it. Oh, I thought that the paint had already dried.

(prior to now) Since when does paint dry immediately? Oh, I’m sorry. I didn’t know that it had been drying

only for a few seconds.

May I speak with your supervisor? Oh, sorry. I’m afraid he’s just left. Oh. (So early?) I didn’t think that he

had already left. I didn’t think he had left yet.

I have waited for him to get back to me for a week, since Monday, but he hasn’t returned my call yet.