虚拟语气、except的题

1.I____writing the article by the time you get back.

A shall finish B must have finished

C have finished D.shall have finished

答案是D B为什么错了？

2.The voter told the politician that he could___ on their support in the next general elections,

A.expect B decide C.count D.doubt

答案是C 有expect on 这个词组吗？ 其他选项是说只有count 和on才可以组成词组其他都不成吗

3.He never wrote to his father____he was in need of money.

A.except B except when C. except for D.except that

答案是B 请讲一下几个选项的用法 谢谢～

shall have done 表示本应该做好某事，而实际上没有，must have done表示本来必须做好而实际上没有，在这个句子里，按语气来说用shall。

count on表示依靠，其他都不能和on搭配。

except和except for的区别就是同类和不同类，同类用except，不同类用except for，而except that很明显后面接从句。

must have done 表示肯定已经做了

没有，是的 count on 依靠

except后面接从句

except for 后面接短语或名词