18. Раскройте скобки, употребляя гла­голы в одном из следующих времен: Present, Past, Future Simple; Present, Past Continuous; Present, Past Perfect.

1. We (to go) to school every day. 2. Nick (to do) his home-work by seven o'clock yesterday. 3. You (to help) your father tomorrow? 4. We (to bring) a lot of berries from the wood. Now we shall make jam. 5. Look! Jane (to swim) across the river. 6. What you (to do) at six o'clock yesterday? 7. You ever (to see) the Pyramids? 8. I (to go) to the Caucasus two years ago. 9. When Nick (to come) home yesterday, his mother (to return) and (to cook) dinner in the kitchen. 10. When I (to go) to school yesterday, I suddenly (to remember) that I (to for­get) to take my English exercise-book. 11. Yester­day grandfather (to tell) us how he (to work) at the factory during the war.

19. Раскройте скобки, употребляя гла­голы в одном из следующих времен: Present, Past, Future Simple; Present, Past Continuous; Present, Past Perfect,

1. I always (to come) to school at a quarter to nine. 2. Yesterday I (to come) to school at ten min­utes to nine. 3. Tomorrow Nick (not to go) to the cinema because he (to go) to the cinema yesterday. He already (to be) to the cinema this week. Look! He (to cry). 4. What your brother (to do) now? 5. My friend (to like) pies. He (to eat) pies every day. When I (to meet) him in the street yesterday, he (to eat) a pie. He (to tell) me that he (to buy) that pie at the corner of the street. Look at my friend nowl He (to eat) a pie again.

20. Раскройте скобки, употребляя гла­голы в одном из следующих времен: Present, Past, Future Simple; Present, Past Continuous; Present, Past Perfect.

1. When you (to come) to see us? — I (to come) tomorrow if I (not to be) busy. 2. I (not to like) apples. 3. He (to come) home at five o'clock yester­day. 4. I (to ring) you up as soon as I (to come) home tomorrow. 5. I (to show) you my work if you (to like). 6. He (to come) home by six o'clock yes terday. 7. Pete certainly (to help) you with your English if you (to ask) him. 8. This little boy never (to see) a crocodile. 9. Send me a telegram as soon as you (to arrive). 10. Let's go for a walk. The rain (to stop) and the sun (to shine). 11. If you (to help) me, I (to do) this work well. 12. I always (to get) up at eight o'clock, but tomorrow I (to get) up a little later. 13. What you (to read) now? — I (to read) Tom's book. I (to be) in a hurry. Tom soon (to come), and I (to want) to finish reading the book before he (to come). 14. As soon as you (to see) your friend, tell him that I (to want) to see him. 15. When I (to come) home yesterday, my brother (to sleep).

21. Раскройте скобки, употребляя гла­голы в одном из следующих времен: Present, Past, Future Simple; Present, Past Continuous; Present, Past Perfect.

1. Yesterday Nick (to say) that he (to read) much during his summer vacation. 2. At the age of twenty my father (to combine) work and study. 3. A great number of students (to study) in the reading-room when I (to enter) it last night. 4. The storm (to rage) the whole night, and the sailors (to try) to do their best to save the ship. 5. Mike's friends could hardly recognize him as he (to change) greatly af­ter his expedition to the Antarctic. 6. When I (to enter) the hall, the students (to listen) to a very interesting lecture in history. 7. Hello! Where you (to go)? — Nowhere in particular. I just (to take) a walk. 8. Our students (to do) all kinds of exercises and now they (to be) sure that they (to know) this rule well. They (to hope) they (to make) no mis­takes in the test-paper. 9. The expedition (to cov­er) hundreds of kilometres, but they still (to be) far from their destination. 10. You (to go) to Great Britain next year?