【推荐1】According to the rule, used batteries ________ be dropped in the red bin for harmful wastes.

A．may

B．would

C．should

D．might

【推荐2】“Gina, whose book is this?” “It ________ be Carla’s. Charles Dickens is her favorite writer.”

A．must

B．can

C．may

【推荐3】―Listen! I think it_______ be Ms. Smith playing the piano.
―No. It _______ be her. She left for New York yesterday.

A．may; mustn’t

B．must; can’t

C．must; mustn’t

【推荐1】—Is that Paul playing the piano in the music room?
—It ________be him. I just saw him in Miss Li’s office.

A．can’t

B．mustn’t

C．can

D．must

【推荐2】This problem ________ be talked about any more. We’ve found the solution.

A．mustn’t	B．shouldn’t
C．needn’t	D．can’t

【推荐3】—The restaurant ________ be very good.
—Yes, there are plenty of people eating here every day.

A．can

B．can’t

C．must

D．mustn’t

【推荐1】—I hear your dad ________ Shanghai on business. Did he fly there?
—Yes, but he will be home tomorrow.

A．will go to

B．has been to

C．has gone to

D．went to

【推荐2】—Where’s your father?
—He ________ Guangzhou and he will be back in two days.

A．has gone to

B．has been to

C．went to

D．goes to

【推荐3】—Millie is worried about her brother who has joined the medical team to Africa.
—He is so brave! I wonder ________.

A．how long he has been to Africa	B．whether he has gone to Africa before
C．how many times he has been in Africa	D．how soon he will return from Africa

【推荐1】—Do you think Emma is still studying at the library? It’s almost midnight.
—She ________. The library closes at 9:30 p.m., and everyone has to leave by then.

A．should be

B．must be

C．needn’t be

D．can’t be

【推荐2】—Who is the man over there? Is it Mr. Li?
—No, it __________ be him. Mr. Li is much taller.

A．mustn’t

B．may not

C．can’t

D．needn’t

【推荐3】—Listen! Is Sarah singing in the neighbor room?
—No. It ________ be her. She has gone to Italy.

A．won’t

B．needn’t

C．can’t