Look at the sign! It says “No Smoking!” You ________ smoke here. It’s dangerous.
A. mustn’t B. ought not to C. needn’t D. don’t have to
Boris has brain. In fact, I don’t think that anyone in the class has ________ IQ.
A. a high B. a higher C. the higher D. the highest
— What do you think of the young lady?
— She is hard-working. She ________ all her effort into her work before she got ill.
A. has put B. put C. had put D. would put
The cost of living in Chengdu is among the lowest in China, ________ the quality of life is probably one of the highest.
A. since B. when C. as D. while
— Do you have any plans for the winter holiday?
— Since you are crazy about music, why not go to some ________ concerts?
A. lively B. live C. alive D. living
________ Mary ________ Jack is listening to the report carefully, because they are both interested in it very much.
A. Neither; nor B. Either; or C. Both; and D. Not only; but also
