—I don’t care what my teachers think．
—Well，you________．

It doesn’t look like rain, so you        bring your umbrella with you.

—Is Jessica giving us a speech this evening?
—No, it _________ be her．She _________ to Japan．

-- What will the weather be like tomorrow?
-- It ______ be rainy, cloudy or sunny. Who knows?

—Who’s that man under the tree? Is it Mr Black, our new English teacher?
—It_______ be. Mr Black has gone to Shanghai for a holiday.
A. mustn’t                                              B. can’t                                               C. needn’t

—May I try on the jeans?
—Yes, you        

―Must I report the situation of the new company to the manager now?
―No, you         . You are tired and you can do it after you have a good rest.

-- Can I tell Peter about the news?
-- No, I don’t want anyone else to know it. You ________ keep it to yourself.

--Is the man standing outside the teacher’s office Mr. Zhou?
--No, it ______ be him. He has gone to Hong Kong for an academic conference.

My uncle _________ drive a car two years ago. Now he drives very well.