BT1:

1. He wasn't planting trees in the garden at 4 pm yesterday

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

2. They weren't working when she came yesterday

Were they working when she came yesterday?

3. She wasn't painting a picture while her mother was making a cake

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

4. Anne wasn't riding her bike to school when Peter saw her yesterday

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

5. He wasn't typing a letter when his boss went into the room

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

BT2:

1. was walking

2. was attending

3. was standing

4. was riding

5. were living

6. was walking

7. was going

8. was studying - rang

9. were dancing

10. were sitting.

Bài 1

1.- He wasn't planting trees in the garden at 4 p.m yesterday.

-  Was he planting trees in the garden at 4 p.m yesterday?

2. - They weren't working when she came yesterday.

- Were they working when she came yesterday?

3. - She wasn't painting a picture while her mother was making a cake

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

4. - Anne wasn't riding her bike to school when Peter saw her yesterday.

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

5. - He wasn't typing a letter when his boss went into the room.

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

Bài 2

1. Was walking

2. Was attending

3. Was standing

4. Was riding

5. Were living

6. Was walking.

7. Was going

8. Was studying/ rang

9. Were dancing

10. Were sitting