1 . To learn better, we _________ listen carefully in class and keep thinking actively.

A．could

B．would

C．should

D．might

2 . We ________ know something about the Youth Protection Law to protect ourselves.

A．can

B．would

C．may

D．should

3 . —Excuse me, but we _________ wait in line to get on the subway.
—I’m sorry.

A．might

B．should

C．could

D．would

4 . Children under twelve ________ ride bicycles on the road. It’s dangerous.

A．needn’t

B．mustn’t

C．wouldn’t

5 . Joe asked me, “Will you join us in the coming football match?” (改为间接引语)
Joe asked me ________ I ________ join them in the coming football match.

6 . —Mum, Jerry asked me to watch the ball game after school. Can I go along?
—You _______, but be sure to get home before 10 o’clock.

A．should

B．would

C．must

D．may

7 . My brother is a smart boy. He ________ read when he was five.

A．must

B．should

C．would

D．could

8 . If you want to stay healthy, you ________ exercise regularly.

A．can

B．must

C．would

D．ought to

9 . “When will you finish the project on Internet safety?” the official asked me. (改为宾语从句)
The official asked ________ I ________ finish the project on Internet safety.

10 . Our teacher said that she ________ (assign) more homework if we did bad in the exams.