一道英语题:_____you are not well,you needn't go with me.
一道英语题:_____you are not well,you needn't go with me.
______you are not well,you needn't go with me.
A.For B.Since C.As D.If
正确答案是B,意思是既然,为什么D不行呢?表示如果啊?
实义动词的need和情态动词的need有什么区别吗?为什么用if,就应该用shouldn't?我觉得用need也可以啊!