I

1, was going

2, was attending

3, was standing

4, was riding

5, were living

6, was walking

7, was going

8, was studying/ was having

9, were just leaving

10, were visiting

II

1, called/ was not/ was studying

2, didn’t hear/ was sleeping

3, was shining/ was singing

4, were talking/ walked

5, were not/ were playing

6, fell/ was reading

7, was snowing; was shining

8, was shoveling/ brought

9, had; was driving; hit

10, decided; was starving

11, were waiting; arrived

12, was swimming; saw

13, Were (they) playing; started

14, were driving; stopped

15, was blowing; went

Bài 1

1, was building

2, was driving

3, was chatting

4, was watching

5, was prepared

6, were (you) doing

7, were (you) going

8, were not going

9, was not doing

10, was reading

Bài 2

1, He was not planting trees in the garden at 4 pm yesterday.

Was he planting trees in the garden at 4 pm yesterday?

Yes, he was./ No, he wasn’t.

2, They were not working when she came yesterday.

Were they working when she came yesterday?

Yes, they were. / No, they weren’t.

3, She was not painting a picture while her mother was making a cake.

Was she painting a picture while her mother was making a cake?

Yes, she was. / No, she wasn’t

4, Anne was not riding her bike to school when Peter saw her yesterday.

Was Anne riding her bike to school when Peter saw her yesterday?

Yes, she was. / No, she wasn’t

5, He was not typing a letter when his boss went into the room.

Was he typing a letter when his boss went into the room?

Yes, he was. / No, he wasn’t.