1. My teacher isn't glad of my success.

Is your teacher glad of my success?

2. We don't want some tomato juice for lunch.

Do they want some tomato juice for lunch?

3. He can't sing these Chinese songs.

Can he sing these Chinese songs?

4. She didn't go to the dentist yesterday.

Did she go to the dentist yesterday?

5. They aren't doing homework at the moment.

Are they doing homework at the moment?

1.

(-) My teacher is not glad of my success.

(?) Is my teacher glad of my success?

2.

(-) We don't want some tomato juice for lunch. 

(?) Do we want some tomato juice for lunch?

3.

(-) He can not sing these Chinese songs.

(?) Can he sing these Chinese songs?

4.

(-) She didn't go to the dentist yesterday.

(?) Did she go to the dentist yesterday?

5.

(-) They are not doing homework at the moment.

(?) Are they doing homework at the moment?

#NOCOPY