4 . Tom has got a watch. He ______ it for two years. It _______ by his father.

A．has bought; was bought

B．has got; is bought

C．was bought; has bought

D．has had; was bought

5 . The dictionary is so expensive ______ I can’t buy it.

A．because

B．when

C．that

D．if

9 . 词性转换
1. base vt. 以……为据点；n. 底部→______________ n. 基础 →______________ adj. 基本的→______________ adv. 主要地，基本上
2. refer vi. 提到；参考；查阅 vt. 查询；使……求助于→______________ n. 提及；参考
3. classic adj. 经典的；古典的；传统的；最优秀的 n. 经典著作→______________ adj. 古典的；经典的；传统的
4. variety n. (植物、语言等的)变体；异体；多样化→______________ vt&vi. (使)多样化→______________ adj. 各种各样的
5. description n. 描写(文字)；形容→______________ vt. 描述
6. appreciate vt. 欣赏；重视；感激；领会 vi. 增值→______________ n. 欣赏；感激
7. equal n. 同等的人；相等物adj. 相同的；同样的→______________ adv. 同样地；相等地→______________ n. 平等；相等
8. demand n. 要求；需求 vt. &vi. 强烈要求；需求；查问→______________ adj. (工作)要求高的；(人)苛求的
9. relate vt. 联系；讲述→_______________ n. 关系；联系→______________ adj. 相关的；有联系的