—You know that you were driving at 100 kilometers per hour, don’t you?
—No, officer, I _____ have been. This car can’t do more than 80.
A. mustn’t B. shouldn’t C. may not D. couldn’t
—May I speak to the patient now?
—No, you _____. He is too weak now.
A. needn’t B. may not C. mustn’t D. oughtn’t
—Why am I so slow at doing the cloze test?
—I guess you didn’t realize the use _____ the contexts.
A. you should have made of
B. you must have made from
C. of which you could have from
D. out of which you need make
My MP4 player isn’t in my bag. Where I have put it?
A. can B. must C. should D. would
The biggest problem for most plants, which ______ just get up and run away when threatened, is that animals like to eat them.
A. shan’t B. can’t C. needn’t D. mustn’t
—Why hasn’t the speaker turned up?
—He _________ the flight. I’ll find it out at once.
A. must have missed B. might have missed
C. would have missed D. could have missed
