This problem is really hard_______ .A.to work out B.to be worked out C.working out D.worked ou

问题描述:

This problem is really hard_______ .A.to work out B.to be worked out C.working out D.worked ou
此题为什么选A不选B呢?或此题正确做法是?

英文中,有时使用主动语态来表达这种被动语态.这个句子中Problem应该是动作的接受者,但是用主动语态来表达”被解出“.类似的句子还有:1. The house needs cleaning.房子需要(”被“)清扫.2. The pen writes well....