I don’t think _______ travel to Mars for a long time.
A. we have to
B. we should have to
C. we must
D. we’ll be able to
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I’m really sorry, but I _______ come to dinner on Tuesday, I’ve got too much work to do.
A. wouldn’t
B. couldn’t
C. shouldn’t
D. won’t be able to
She didn’t have a driving license then, so she _______ drive a car.
A. mustn’t
B. can’t
C. couldn’t
D. shouldn’t
Which of the following sentences expresses possibility?
A. That noise must be the protesters marching through the streets.
B. She might have stolen the money – she knew where I kept it.
C. You don’t look very well, you should see a doctor.
D. You don’t have to submit your essay until the 2nd of March.
When we were children, we _______ tidy our rooms before we could watch TV.
A. must
B. had to
C. have to
D. should
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