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.
47. 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.
48. Use the required tense (Present and Past Simple, Present and Past Continuous, Present Perfect and Present Perfect Continuous):
1. She (to go) to Italy five years ago. Since then she (not to speak) Italian, and (to forget) nearly all she (to learn) there. 2. When he (to run) after the tram, he (to fall) and (to hurt) his leg. We (to have) to carry him home. Now he (to lie) in bed. The doctor just (to leave). The doctor (to say) he must stay in bed for a week. 3. He (to look) through my album when I (to enter). "You (to like) my sketches?" I (to ask) him. "They (not to be) very good." 4. What you (to look) for? - I (to lose) my pen and (to want) to find it before it (to get) dark. - When you (to lose) it? - I (to think) I (to drop) it somewhere here when I (to go) to the Institute this afternoon. 5. My friend Robert (to learn) French for the last three years, and now he (to study) German, too. 6. You (to
speak) to Ann yesterday? - No, I (not to see) her for a long time. I (not to remember) when I last (to see) her. 7. My brother (to study) modern English literature for two years and then (to give) it up. 8. I (to look) at this photograph for five minutes, but I can't see you in it. - I'm afraid you (to look) at the wrong one. 9. You must stop reading; you have a headache because you (to read) too long! 10. My elder brother (to join) the army when he (to be) eighteen. 11. They (to live) in that town for ten years and then (to move) to the country. 12. We (to live) here for the last six months, and just (to decide) to move. 13. He (to write) a new play for the last two years, but he (not to finish) it yet.
49. Use the Past Simple, the Past Continuous or the Past Perfect Continuous instead of the infinitives in brackets:
1. He (to read) his evening paper as usual when a friend of his called him on the telephone. 2. He (to read) before the fire for half an hour when the telephone rang. 3. When we went to see them last night, they (to play) chess; they said they (to play) since six o'clock. 4. She felt chilly after she (to swim) for an hour. 5. They told me that Ben still (to swim). 6. The boys (to play) football and did not hear their mother calling them from the window. 7. The boys were tired because they (to play) football. 8. We (to work) in silence for some time when John spoke. 9. He (to look) at the fire and (to think) of something. 10. He (to look) three or five minutes at the fire and then turned his face to me; it was sad. 11. At last I found the book, which I (to look) for all day. 12. He asked me what I (to look) for. 13. When I entered the room Sir George (to talk) in a loud voice. 14. They told me Sir George just (to talk) about me. 15. Monty (to tremble) too in fits which shook his body from top to bottom. 16. She (to put) aside the book she (to read) and (to stand) up from the table.
50. Put the verbs in brackets into the Past Simple, the Past Perfect or the Past Perfect Continuous Tense.
1. I (find) later that I (use) an out-of-date time-had table. 2. It (be) 6 p. m.; and Jack (be) tired because he (work) hard all day. 3. He clearly (listen) to our conversation and I (wonder) how much he (hear). 4. She (say) she (teach) in this school for twenty years. 5. He (say) he just (return) the book he (read) all this time. 6. He (ask) me if I (see) Robert and (say) that he (look) for him all the afternoon. 7. When I (come) to work in the laboratory they (work) on this model engine for six weeks.