根据句意及首字母提示完成句子。

1. — What's your t _____ number?

    — It's (010)5987463.

2. Mr. Lee is our teacher. He isn't young. His hair is g _____.

3. — Is  that skirt yours?

    — Yes, it's m _____.

4. Please help me f_____ a knife.

5. Doudou is twelve. He is a high school s_____ in Anhui.

6. Kate and I are in the same class. She is my c_____ .

7. — Look! Here is a dress. W_____ dress is this?

    — It's hers.

8. — What is your sister's n_____ ?

    — She is Gao Hua.

9. — Are those cars from Canada?

    — No, they aren't. They are from J_____ .

10. — What color is this skirt?

     — It's o_____ .

阀门按用途和作用可分为：截断阀、止回阀、（）、分流阀、安全阀。

A、调节阀

B、真空阀

C、自动阀

D、蝶形阀