10. His dictionary　　　his radio are on the desk.

A. and B. but C. or D. with

【解析】选A。考查连词的用法。连词and用于连接单词与单词、句子与句子, 根据句意"他的字典和收音机在书桌上。"及谓语动词are可以判断用连词and。

Ⅲ. 完形填空(10分)

A: Hi, Mom!

B: Bob, you must go to school now!

A: Oh, no! Where　1　my books, Mom?

B: 　2　are in your schoolbag.

A: Where　3　my schoolbag?

B: 　4　on the sofa.

A: Where are　5　tapes?

B: They are on the bookcase.

A: Mom, is this　6　tape player?

B: Yes, it is mine. And are these pencils　7　?

A: No, they aren't mine. They are my　8　.

B: And is this model plane　9　?

A: Yes, it is. Oh, Mom, where's my hat? I can't　10　it.

B: Haha, it's on your head.

1. A. am　　　　B. is　　　　 C. are　　　　 D. do

【解析】选C。考查动词辨析。询问物品位置用be动词, 根据books可以判断用are。

2. A. It B. It's C. These D. They

【解析】选D。考查代词用法。根据books可以判断用they。

3. A. am B. is C. isn't D. are

【解析】选B。考查主谓一致。主语为单数, 用is。

4. A. It's B. It C. They D. They're

【解析】选A。考查人称代词。根据问句可以判断用It is的缩写It's回答。

5. A. mine B. my C. hers D. yours

【解析】选B。考查物主代词的用法。该选项后面有名词, 需用形容词性物主代词。

6. A. your B. my C. yours D. hers