—We _______ keep quiet in the library.
—Yes, I agree with you. And we _________ bring our student cards every time.
A.must; mustn’t | B.have to; mustn’t |
C.must; don’t have to | D.have to; don’t have to |
―I’m sorry I’m late.
―_________. Come earlier next time.
A.My pleasure | B.No problem |
C.It doesn’t matter | D.All right |
________ painting it is! This is probably the ugliest one I’ve ever seen.
A.How terrible | B.How good |
C.What a terrible | D.What a good |
―Congratulations, Jane, you have won the first prize in the physics competition.
―Thank you, Mr Green. I can’t make such great __________ without your help.
A.experience | B.experiment |
C.progress | D.operation |
The water in the river nearby will be dirtier than before if nothing __________.
A.has done | B.will be done |
C.is done | D.was done |
―Is Tom coming to the concert this evening?
―No, he _________ be at the concert. He _______ abroad.
A.mustn’t, has been | B.mustn’t, has been to |
C.can’t, has gone to | D.can’t, has gone |