Use the Present Continuous or the Present Perfect Continuous instead of the infinitives in brackets

Note. The Present Continuous expresses an action going on at the moment of speaking. The Present Perfect Continuous expresses an action occupying a period of time still continuing or just finished.

1. What you (to look) at? - I (to look) at that picture over there. I (to look) at it for almost half an hour and I still can't understand what it is. 2. What Mary (to do)? - She (to practise) the piano. She (to play) since 12 o'clock. I think she must have a rest. 3. Here you are at last! I (to look) for you everywhere. 4. Why you (to smile) Robert? - I (to watch) your kitten. What a playful little thing it is! 5. I see you (to write) letters all the morning. Is it the last letter you (to write) now? 6. You (to sit) here for a long time. You (to wait) for anybody? 7. How long you (to study) English? - For three years already. 8. I (to work) at my report since Monday. Now I (to write) the conclusion. 9. Mary's mother (to rest) in the garden all day because she is ill. 10. She (to sleep) for ten hours! You must wake her! 11. David (to repair) the TV-set. He (to work) at it for an hour or so. 12. David (to wash) his hands. He just (to repair) the TV-set. 13. Why you all (to laugh)? Jim (to tell) you his anecdotes? 14. It's six o'clock. I (to wait) for Ann for half an hour. I must be off now.

107. Cumment on the use of the Present Perfect Continuous and translate these sentences into Russian:

1. a) All these days he has been talking about his new plan. He can't speak of anything else. b) Here is Mr. Madden who we hav just been speaking about.

2. a) I have been peeling potatoes for half an hour, but Mother says there isn't enough for everybody. b) Why are your nands dirty? - I have been peeling potatoes.

3. a) Children, you have been swimming half an hour already. Get out of the water, quick! b) I am cold because I have been swimming for an hour.

4. a) They have been working in the garden since 10 o'clock. Tell them it is time to have lunch. b) I am very tired; I have been working in the garden.

5). a) Kitty, you have been watching TV too long, you'll have a headache. b) I have a headache; I have been watching TV too long.

108. Use the Present Perfect or the Present Perfect Continuous instead of the infinitives in brackets:

1. You (to pass) your exam in English literature? 2. I (to try) to learn English for years but I (not to make) good progress yet. 3. That book (to lie) on the table for weeks. You (not to read) it yet? 4. I (to wait) here for her since 7 o'clock and she (not to come) yet. 5. I (to read) "War and Peace" for the last three months. 6. I (to think) about you all day. 7. He never (to be) here before. 8. I can't help being angry with you; you (to sit) here all the time and doing nothing. 9. There's nothing to be proud of; you (not to get) a single excellent mark as yet. 10. I (to work) so hard this week that I (not to have) time to go to the cinema. 11. The girls (to talk) about their new dresses for half an hour already; it seems they have nothing else to talk about. 12. I just (to talk) to him; he agrees to help us. 13. Some of our students (to join) the English club to get a better command of the language. 14. I (to know) her all my life and we always (to be) good friends.

109. Combine the two sentences into one using too + adjective + infinitive.

Models: I was busy; I couldn't write to you.

I was too busy to write to you.

It was very dark. We couldn't see anything.

It was too dark for us to see anything.

1. I am very tired; I mustn't work any longer. 2. It's very cold; we can't go out. 3. I was so angry; I couldn't speak to him. 4. It's very far; we can't walk. 5. It's very good; it can't be true. 6. This dress is very old; I can't wear it any more. 7. The music is very soft; we can't hear it. 8. You are so young; you can't be a teacher.

110. Read the following sentences a) in the interrogative, b) in the negative:

1. Bob came home late. 2. She gave them her dictionary. 3. He took a shower. 4. The students went to the lab. 5. They got up early. 6. Ann brought me a new magazine. 7. He left for London on Monday. 8. They wrote to me every month. 9. He read the letter out loud. 10. You did it all by yourself. 11. She spoke English fluently. 12. They sat down quietly. 13. Jim saw them together. 14. They all heard the song. 15. He paid the money yesterday. 16. Benny found his ball. 17. She remembered every word. 18. Ann made good progress in English. 19. The boys knew where to go. 20. They celebrated New Year. 21. She got an excellent mark. 22. My parents met me at the station. 23. You thought he was right. 24. We discussed it at the meeting, 25. It troubled me very much. 26. Robert repaired Ann's iron. 27. They began on time. 28. You told John about it. 29. He spent a lot of time on his English. 30. They admired her singing very much.

111. Use the Past Indefinite or the Present Perfect instead of the infinitives in brackets:

1. How long you (to know) him? - I (to know) him since 1965. 2. He (to live) in Leningrad for two years and then (to go) to Siberia. 3. When he (to arrive)? - He (to arrive) at 2 o'clock. 4. I (to read) this book when I was at school. 5. I can't go with you as I (not to finish) my work. 6. The clock is slow. - It isn't slow, it (to stop). 7. You (to have dinner) yet? 8. The performance (to begin) at 7 o'clock and (to last) for 3 hours. We all (to enjoy) it. 9. The lecture just (to begin). You are a little late. 10. We (to miss) the tram. Now we'll have to walk. 11. You (to be) here before? - Yes, I (to spend) my holidays here last year. 12. You (to see) Kitty on Monday? 13. Where is Tom? - I (not to know). I (not to see) him today. 14. I (to lose) my pen. You (to see) it anywhere? 15. You ever (to try) to give up smoking? 16. Why you (to switch on) the light? It is not dark yet. 17. When it (to happen)? 18. He (to leave) for the Far East two yearsago and I (not to see) him since. 19. The last post (to сome)? 20. When you (to meet) him last? 21. You (to be) to the laboratory this week? 22. Why you (to take) my pen while I was out? You (to break) it.

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