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
查看答案
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
Now I have a good salary, I ________ worry about paying the rent.
A. mustn’t
B. have to
C. don’t have to
D. must to not
Which sentence has the strongest obligation?
A. I have to call my mum because it’s her birthday.
B. I ought to call my mum because it's her birthday.
C. I should call my mum because it's her birthday.
D. I could call my mum because it's her birthday
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