It ___ cold.You'd better wear warm clothes.A.may B.maybe C.may be D.must如肯定答案正确,为什么有一些表猜测的情态动词后面有be,而一些没有?
问题描述:
It ___ cold.You'd better wear warm clothes.A.may B.maybe C.may be D.must
如肯定答案正确,为什么有一些表猜测的情态动词后面有be,而一些没有?
答