从题后的两个选项中选择一个正确答案

I don't know ________ to stay or go. (whether, if)

根据题意，用适当的情态动词或助动词填空

This ________ not be a woman's handkerchief(手帕). It must be a man's.

根据题意，用适当的情态动词或助动词填空

　　This ________ be Jim's book.

　　I saw him put it on the desk just now.

根据题意，用适当的情态动词或助动词填空

We ________ not hurry. There's enough time.

根据题意，用适当的情态动词或助动词填空

________ you like another cup of tea?

根据题意，用适当的情态动词或助动词填空

　　－Must we hand in our homework today?

　　－No, you don't ________.

根据题意，用适当的情态动词或助动词填空

She ________ fly to Hong Kong next week.

根据题意，用适当的情态动词或助动词填空

I don't think he ________ be so careless.

根据题意，用适当的情态动词或助动词填空

　　－When ________ we meet outside the school gate?

　　－At two o'clock in the afternoon.

根据题意，用适当的情态动词或助动词填空

　　－Mary ________ not watch TV last night.

　　－She read a book instead.