6. These are the tiger
teeth
They're ..
7. This is
Mother
newspaper
NEWS
It's
This ...
21​

1. Father (was watching) TV at ten o'clock yesterday.
2. I (went) to bed at nine o'clock yesterday.
3. I (finished) my homework at nine o'clock yesterday.
4. I (was playing) the piano at five o'clock yesterday.
5. He (began) to do his homework at four o'clock yesterday.
6. She (was washing) the floor at four o'clock yesterday.
7. I (met) Nick at three o'clock yesterday.
8. When I (came) home, Kate (was playing) the piano.
9. When I (met) John, he (was going) to the railway station.
10. When I (was going) to the museum, I (saw) a big crowd of people in the street.
11. They (played) in the yard in the evening yesterday.
12. They (were playing) in the yard the whole evening yesterday.
13. I (cleaned/was cleaning) my teeth at eight o'clock in the morning yesterday.
14. We (went) to the wood in summer.
15. When the teacher (opened) the door of the classroom, the pupils (were sitting) at their desks.

1. It may be our dictionaries. 2. He hasn’t read a line of yours. How can he criticize? 3. His composition is much more interesting than yours or mine. 4.  Their knowledge of the subject isn’t better than ours. 5. I’m afraid they will take her advice not yours. 6. All our clothes were very dirty, especially mine. 7. Will you help me to sort out the things? I cannot tell which are yours and which are mine. 8. This is your copy-book, but where is mine? 9. My sister likes much sugar in her tea, but I like little in mine. 10. The friend of theirs is very intelligent.