—What did you say to your sister? I saw her crying in the room.
— It _________ my fault. I just said hello to her when I met her, nothing else.
A. must have been B. can’t have been
C. oughBtn’t to be D. should have been
If you_______ smoke, please go outside.
A. can B. should
C. must D. may
It is strange that the well-behaved gentleman _______ be so rude.
A. should B. need
C. might D. would
—I saw Nancy on the way home yesterday.
—It be her. She’s gone to the USA for further study.
A. mustn’t B. can’t
C. won’t D. needn’t
—Who______ it be that is knocking at the door?
—It ______ be Father, but I’m not sure.
A. can; must B. can; may
C. must; can D. may; must
Must I wait till you come back? No, you ______.
A. mustn't B. needn't
C. can't D. won't
—Is it necessary to look up every new word when I come across it in reading?
—No. You ________， because you are likely to guess the meaning from the context.
C．don't have to D．ought not to
— Mum, would you please buy me an ipad?
— If you can help do the dishes the whole vacation, you ______ have one as a reward.
A. would B. shall
C. may D. must
______ surprised us most was that with all his money, he _______ worry about a little thing like 5 cents.
A. It; could B. What; could C. What; should D. It; should
No student go out of school for snacks during the break without the teacher’s permission.
A. will B. must C. shall D. may