【推荐1】People in the closed areas (封控区) ________ get out of their houses except for emergency.

A．mustn’t

B．can’t

C．shouldn’t

D．oughtn’t

【推荐2】— I can't find my schoolbag. My god!
— It ________ be stolen. Maybe you left it somewhere.

A．mustn't

B．can't

C．needn't

【推荐3】— ________ I finish the work this week, sir?
—No, you ________. You can finish it till next Wednesday.

A．Must; mustn’t

B．Must; needn’t

C．Can; needn’t

D．Can; mustn’t

【推荐1】—Listen! I think it ________ be Jacky singing in the office.

—No. It ________ be him. He left for Shanghai just now.

A．must, can’t

B．may, mustn’t

C．must, mustn’t

【推荐2】—Tom said he planned to sell his shop and go to a medical school. It ________ be true, right?
—Well, you’re probably wrong. He always wants to learn medicine, you know.

A．shouldn’t

B．can’t

C．needn’t

D．mustn’t

【推荐3】--Who’s the man over there?Is it Mr Black?
----It _____be him.He’s much taller.

A．mustn’t

B．can’t

C．should

D．may