【推荐1】Children above 1.4 meters in height ________ buy a ticket on the bus.

A．can

B．might

C．should

D．could

【推荐2】The dictionary ________ be Mary’s. Look! Her name is on it.

A．must

B．can

C．may

D．might

【推荐3】That sweater ________ be Carla's. She's the only one who wears such colorful clothes.

A．might

B．must

C．can't

【推荐1】The plane will take off in an hour. We _____ leave for the airport now.

A．can

B．must

C．may

D．need

【推荐2】 ---Let's go to the train station by bus.
---We______take a bus. It is quite near from here.

A．can't

B．needn't

C．couldn't

D．mustn't

【推荐3】—_______ I finish the work today?
—No, you needn’t.

A．Must

B．May

C．Can

D．Need

【推荐1】—Why didn’t Brian come to school?
—I don’t know. He _______ be ill.

A．might

B．would

C．can

D．must

【推荐2】—I saw a woman standing in front of your home yesterday. It ________ be your aunt, but I’m not sure.
—It ________ be her. She has gone to Beijing for business.

A．must; mustn’t

B．would; can’t

C．can’t; might

D．might; can’t

【推荐3】-You needn't take an umbrella.It isn't going to rain.   -Well,I don't know.It _________ do.

A．might

B．need

C．would

D．should