It has been announced that candidates ______ remain in their seats until all the papers have been collected. www.7caiedu.cn
A. can B. will C. may D. shall
You can’t imagine that a well –behaved gentleman ______ be so rude to a lady.
A. might B. need C. should D. would
—Well, I forgot to bring my dictionary here yesterday.
—Actually you _____ it here. You were not allowed to use it.
A. needn’t bring B. needn’t have brought
C. didn’t need to bring D. don’t have to bring
—Many people in England love to give advice on weather reporting.
—Yes, but I think the weather office’s computers _____ be more accurate.
A. can B. must C. ought to D. might
The whole building _____ burned down, but the heavy rain _____.
A. might have; would help
B. could have been; helped
C. must have; helped
D. should have been; was helping
Messages ______ be changed from sound into electricity before they ______ be sent by radio.
A. must; will B. have to; can C. can; must D. need; may
