--Just a minute. I’ll go to get some apples for you.
--Thanks, but you       get too many. One is enough.

—Are you going to Guilin by plane?
—It’s fast but expensive, so I’m not sure. I __________ take a train.

—Look at that girl! Is it Susan?
—No, it _______ be her. She has gone back to her hometown.

Must I hand in my exercise book now, Mr. Zhao?
- No, you   __. You may give it to me tomorrow.
A, needn’t                B. mustn’t                C. can’t

As students, we ________ study hard to make our country more beautiful and stronger.

--Whose T-shirt is this?
--It       be John’s. It’s much too small for him.

– Must I get up early tomorrow morning?
– No, _________.

—Must I go through the radiation (辐射) check when I come back from Japan at the airport these days?
—Yes, you ______.

—Do you know the song Come on, Haixi!—Yes, and I _________sing it well.
A. must B. can C. need

—Let’s go dancing tonight.!
—Sorry, I ________.I have to go to my guitar lesson.
A. mustn’t              B. needn’t             C. can’t