单选题：—Is Nick coming by train?—He should, but he ________ not. ..

—Look，I’ve bought some bread，including your favorite flavor.—You ________ any because we still have plenty at home.A．should have boughtB．could have boughtC．needn’t have boughtD．mustn’t have bought

一 Shall we attend the concert this evening? 一 Great idea, _____ we can do some shopping first.A. when B. whereC. since D. if

A problem suddenly came to my mind _____ we could find a good way of saving the old man _____ we would not hurt him.A. where; whoB. whether; that C. that; thatD. when; how

She ______ into the thick forest alone on such a dark night.A．dares not goB．dares not to goC．dare not to goD．doesn’t dare go

Do some warming up exercise before sports. Or you _______ hurt yourself.A．mustB．needC．should D．may