We all know that we ________ our carbon footprint, but I suspect that many people wouldn't be prepared to go as far as Joan Pick, a retired scientist living in south London.
#62336
A
must have reduced
B
should have reduced
C
may have reduced
D
could have reduced
推荐题目
—This pair of shoes ____ belong to Jack. He likes this kind very much.—It ____ be his. It’s too large for him.
#74684
A
can; can’t
B
may; needn’t
C
must; mustn’t
D
must; can’t
—May I do the rest of the work tomorrow?—Yes, of course. You finish it today.
#74448
A
needn’t
B
mustn’t
C
need
D
must
--Listen! Kate is playing the piano in the next room. --It _______________be Kate. She has gone to Hangzhou to visit the Cross-sea Bridge.
#78174
A
needn’t
B
mustn’t
C
can’t
D
shalln’t
－_________ we go at 7.30 ? －What about __________ it a little earlier ?
#76034
A
Shall ,making
B
Shall , to make
C
Will , making
D
Shall, make
--- Must I hand in my report now? --- No, you ________. You still have some time.
#77494
A
shouldn’t
B
mustn’t
C
needn’t
D
can’t