20.2 ) are these sentences ok? correct the verbs that are wrong. (the verbs are underlined.)
1 i've lost my key. i can't find it.
ok
2 have you seen kate yesterday?
did you see
3 i've finished my work at 2 o'clock.
4 i'm ready now. i've finished my work.
5 what time have you finished your work?
6 sue isn't here. she's gone out.
7 steve's grandmother has died two years ago.
8 where have you been last night? ​

4. Choose the correct tense form of the verb:

1. He (goes) to the university every day. 2. My daughter usually (comes) home early. 3. This film (was produced) in 1996. 4. This thing (was lost) by a young man yesterday. 5. They usually (come) here at 5 o’clock. 6. They (took) this book a month ago. 7. This plant (doesn’t produce) cars. 8. This letter (will be sent) tomorrow. 9. The students (didn’t read) this text at the last lesson. 10. The conference (will be held) at our institute next week. 11. He (is not known) in this town. 12. Your wife usually (spends) much time in the country. 13. He always (orders) meat for dinner. 14. My friend (spoke) to his teacher yesterday.

1.1

More than 500 Russian spaceships have been launched since 1957

It has been raining for two hours.

We have known each other for a long time.

It has been snowing since morning.

Alice hasn’t phoned me since her birthday party.

The astronauts have been working in space for an hour and a half.

We have been writing the test for twenty minutes.

He has been playing football since he was 7.

My little brother has been ill since Monday

They have been doing sports since three years.

She has been listening to a new disk since she has bought it.

1.2

1) Earth is а planet.

2) The Sun is a star.

3) The Earth moves around the Sun.

4) A galaxy is a large group of stars.

5) People started to travel to space in the 20th century.

6) There are thousands of millions of stars in the Galaxy.

1.3

2) It was raining heavily, so I had taken my umbrella before I left home.

3) When we arrived at the theatre the performance started

4) Tom didn’t go to the cinema with us because he don't see.

5) She had learned the poem by heart by 6 p.m.

6) When I came home my mother had already made dinner.

7) Ты не дописал(а)