simple.
1 when / they / leave /? (at half past six)
When did they leave?
They left at half past six
2 1/ say the wrong thing/? (yes)
3 what he / give / his mum /? (a book)
4 you / understand / the question/? (no)
5 how many / glasses of juice / we/ drink/?
Inine)
6 they/help/Matt/? (yes)
2. Did I say the wrong thing?
Yes, you said the wrong thing.
3. What did he give his mum?
He gave his mum a book.
4. Did you understand the question?
No, I didn't understand the question.
5. How many glasses of juice may we drink?
You may drink nine glasses of juice.
6. Did they help Matt?
Yes, they helped Matt.