Cho dạng đúng của từ trong ngoặc: When your father (die)?

1.When your father (die)?
I (not know) when he (die)?
2. Bill said he (forget) to buy a dictionary.
3. He felt asleep while he (do) his homework.
4. We (not see) them for a long time.
5. It (rain) when we arrived.
6. Kite and I (wait) right here until you get back.
7. He'll leave as soon as he (hear) the news.
8. Dick (start) school before he (be) seven.
9. How long you (study) in this school?
10. We (not receive) any letter from him since he (leave) four months ago.
11. Where are you? I'm upstairs. I (have) a bath.