【推荐1】Students ______ wear school uniforms on Mondays because it’s a rule in our school.

A．may

B．can

C．must

D．shall

【推荐2】—Excuse me, do you mind if I use your bike today?
—Well, if you ________, I can take a bus.

A．can

B．may

C．must

D．should

【推荐3】—All of us ________ follow the traffic rules when going out.
—Exactly! Safety comes first.

A．may

B．must

C．might

【推荐1】—Who is running on the sports field?
—It ________be David. He is ill at home.

A．can't

B．mustn't

C．must

D．might

【推荐2】—Will Lucy go to the cinema with us tonight?
—She _________ come, but I’m not sure.

A．will

B．must

C．might

D．can’t

【推荐3】In Britain, you __________ be 18 if you want to drive a car.

A．can

B．must

C．may

D．might

【推荐1】—I don’t care what my teachers think．
—Well，you________．

A．could

B．would

C．should

D．might

【推荐2】—I have a headache.
—You ________ stay in bed and take a rest.

A．can

B．should

C．may

D．must

【推荐3】—Many people play with mobile phones all day instead of reading books.
—That’s too bad. Everyone ________ be a book lover. Reading is more enjoyable.

A．should

B．can

C．would

D．may

【推荐1】—Jeff, you ________ swim alone. It’s dangerous.   
—Sorry, I won’t.

A．can

B．must

C．should

D．shouldn’t

【推荐2】- I don't think Tom is fast enough to learn things.
-"I am surprised, my dear," said Mrs. Bennet, "that you_______ be so ready to think your own child slow in learning."

A．might

B．could

C．should

D．would

【推荐3】Children ________ eat too much chocolate. It’s bad for their teeth.

A．may not

B．ought not

C．could not

D．should not