- "I think Jane is at home."                         

- "No, she _____ be at home, for she phoned me from the airport just ten minutes ago."

A. mustn't B. needn't C. can't D. daren't

-Hurry up! Tom _____ for us at the school gate.

A. must wait B. must be waiting C. must be waited D. must be waited

- "Must we do it now?" -"No, you _____ .”

A. won't B. needn't C. can't D. don't

The plant is dead. I ______ it more water.

A. will give B. would have given C. must give D. should have given

You _____ return the book now. You can keep it till next week.

A. can't B. mustn't C. needn't D. may not

Mother ______ us stories when we were young.

A. was used to tell B. is used to telling C. used to tell D. used to telling

I didn't hear the phone. I _____ asleep.

A. must be B. must have been C. should be D. should have been

He _____ you more help, even though he was very busy.

A. might have given B. might give C. can't have given D. may give

Jane _____ have kept her word. I wonder why she changed her mind.

A. must B. should C. need D. would

A computer _____ think for itself; it must be told what to do.

A. can’t B. can’t C. must D. will