1 . 按要求写出相应的词
1. what is (缩略形式)________________
2. is not (缩略形式) ________________
3. that’s (完全形式)________________
4. aren’t (完全形式) ________________
5. fat (对应词)________________
6. tall (对应词) ________________
7. happy (对应词)________________
8. big (对应词)________________
9. he (对应词)________________
10. I (复数) ________________

2 . — Are those your books?
— ________. They’re my friend Helen’s.

A．Yes, those are

B．No, those aren’t

C．Yes, they are

D．No, they aren’t