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The Brown Family has gone to Switzerland every winter for 4 years.

 

2. My brother ate frogs' legs. He ate frogs' legs three times.

3. Carol is in Morocco. She went there last month.

4. Timothy rides a bus to school. He started to do it when his car broke down.

5. Jorge and Carmen are married. They got married in 1980.

6. Scientists are concerned with the world's rain forests. This concern started many years ago.

7. James knows how to repair a computer. He learned how to do it a long time ago.

8. I wanted to go to Japan several years ago. I still want to go.

9. Maria was excited about space exploration when she was young. She is still excited about it.

10. I saw the answers to the test. When I saw the answers is a secret.

Exercise 2 Past simple or present perfect? Chose the right tense of the verb given in brackets.

 

1. All samples ( failed / have failed) under the first test condition.

2. Recent studies (showed / have shown) that...

3. Research conducted in the 1990s ( showed / has shown) that...

4. The studies ( were not completed / have not been completed) yet.

5. Two years ago, researchers ( demonstrated / have demonstrated) the link between...

6. Over the past six years, there ( were / have been) several exciting developments in the field of mechatronics.

7. Lewis's (2004) investigation ( proved / has proved) the effect of...

8. An investigation ( was carried out / has been carried out) recently into...

 

Exercise 3 Put the following words into a sentence in the present perfect tense.

 

1.they / last / since / marry / summer

2.never / along / they / each / get / with / other

3.recently / not / hear / from / I / her

4.teach / her / Maria / all / life / English

5.call / his / Tom / several / girlfriend / times

6.appear / not / he / since / on / TV / 2005

7.my / I / see / April / since / sister

8.five / Mike / read / summer / so / this / books / far

9.watch / for / TV / hours / Matt / two

10.visit / the / he / museum / month / times / this / three

Exercise 4 Write sentences in present perfect tense using the words or phrases given in each question.

 

1. Jane / return / from / office.

2. She / write / a novel.

3. He / act / in / ten films.

4. I / not / receive / your / letter.

5. I / never / hear /of that / place.

7. Look / what / john / give / me!

8. Police / arrest / 80 suspected / drug traffickers / in raids.

9. A 24-year old / woman / kill / in an accident.

10. Honey / I / lose / my keys.

11. I / answer / six / phone calls / since / lunchtime.

12. I / study/ hard / for years.

 

Exercise 5: Fill in the blanks with the present perfect tense. Choose one of the suitable words:

be, spot , work, have, repair, take , see, end, leave, face, postpone, eat, be, win, write, prepare, return, organize, apply, go hiking


Date: 2016-03-03; view: 950


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Exercise1. Complete the sentences with the correct forms of the verbs in the simple present or present continuous tense. You can use some of the verbs from the box more than once. | THE PAST PERFECT TENSE
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