根据答句，填疑问词。
1. _________ _________ apples can you see? Eight.
2. _________ _________ are you? I'm eleven.
3. _________ is the weather? It's sunny.
4. _________ _________ is your mother? She is fifty.
5. _________ do you go to school? By bus.
6. _________ _________ is the book? Ten yuan.
7. _________ is the girl? She is my sister.
8. _________ is the girl? She is on the train.
9. _________ is your address? My address is 135 Nine Avenue.
10. _________ _________ is it? It's 7: 00