Question

選用適當的情態動詞填空。

(can, may, must, can't, mustn't. )
1．________ you speak French? No, I ________, but Mr. Black ________.
2．________ I use your knife? Certainly.
3．________ we go out and play football now? No, you ________. You ________ finish your
     homework first.
4．She ________ hear you clearly. Please speak a little louder.
5．How long ________ I keep this book? You ________ keep it for two weeks.

Answer 1

1．Can, can't, can  2．May/Can  3．Can, can't, must  4．can't  5．may, may