【推荐1】—Could I borrow your dictionary?
—Yes, of course you __________.

A．could

B．can

C．must

【推荐2】Cooking is an important skill, and everyone ________ learn to make some simple dishes.

A．might

B．could

C．mustn’t

D．should

【推荐3】He ________ be lost because he has been here several times.

A．can’t

B．must

C．could

【推荐1】—Whose English book is this?
—It _______ be Lily’s, but I’m not sure.

A．must

B．can’t

C．might

D．need

【推荐2】—Do you have any plans for the summer vacation?
—I’m not sure. I ________ work in the community as a volunteer.

A．must

B．can

C．may

D．should

【推荐3】—Sir, you ________ cross the road when the light is red. You know, building a civilized city（创建文明城市）is our duty.
—Sorry, I won’t.

A．needn’t

B．must

C．can’t

【推荐1】The bike ________ be Tom’s. He comes to school by bus every day.

A．can’t

B．needn’t

C．mustn’t

D．shouldn’t

【推荐2】—I can’t stop playing computer games.
—For your health, I’m afraid you ________ stop it.

A．mustn’t

B．can

C．must

D．may

【推荐3】—William, I’m afraid we can’t complete the model spaceship this afternoon.
—Well, we ________ finish it today. It’s fine if we give it to Mr. Wang tomorrow.

A．can’t

B．mustn’t

C．shouldn’t

D．needn’t

【推荐1】Maria ________ sing Chinese songs now, but she ________ do it last year.

A．can; couldn’t

B．can; could

C．could; can’t

D．could; can

【推荐2】—How is your new teacher?        
—We _________ ask for a better one. All our classmates love her so much.

A．could

B．couldn’t

C．should

D．shouldn’t

【推荐3】Jane_______   swim in the past, but now she   _______ .

A．can; may

B．couldn't; can

C．can't; could

D．can't; couldn't