【推荐1】—Is the man over there Adam?
—It ________ be him. He has gone to Hong Kong on vacation.

A．must

B．can’t

C．mustn’t

D．may

【推荐2】Bob ________ go to the movies because she is going to have a meeting.

A．can’t

B．may

C．mustn’t

D．should

【推荐3】—Mum, can I wear my jeans to school?
—No, you ________ wear your school uniform. This is the school rule.

A．can

B．may

C．have to

D．must

【推荐1】In most cities in China, no one ________ take the subway if he or she doesn’t wear a mask(口罩).

A．can

B．must

C．should

D．need

【推荐2】— Excuse me, where is Mr. Lin?
— He _______ go to the meeting room, but I’m not sure.

A．may

B．can

C．would

D．must

【推荐1】— Look! Mr Black is coming up to us.
— It ________ be Mr. Black. He has gone to Australia.

A．needn’t

B．mustn’t

C．can’t

【推荐2】You ________ worry about your mother. She’ll soon be better after taking some medicine.

A．needn’t

B．shouldn’t

C．can’t

D．mustn’t

【推荐3】—Look, Sarah, there’s a red notebook on the desk. Whose is it?
—It _________ be Tom’s as his notebook is blue. It _________ be Lily’s as her name is on the cover.

A．mustn’t; must

B．mustn’t; can

C．can’t; must

D．can’t; may

【推荐1】The light in Miss Li’s office is off. She ______ be in her office now.

A．mustn’t

B．must

C．can’t

D．can

【推荐2】（山东省滨州市滨城区2017届九年级第二次模拟）—Is that girl Susan?

—It              be her. She left for Beijing yesterday.

A．needn’t

B．can’t

C．mustn’t

D．may not

【推荐3】The pet dog   ________ be John's. He is afraid of dogs.

A．needn't

B．must

C．mustn't

D．can't