howtooperatethecomputer,theprojectwouldhavebeenfinishedearlierandwecouldspe.howtooperatethecomputer,theprojectwouldhavebeenfinishedearlierandwe\x05couldspentmoretimetogetherwithmyfamily.A.HadIknown\x05\x05\x

Question

how to operate the computer,the project would have been finished earlier and we could spe
._______ how to operate the computer,the project would have been finished earlier and we
\x05could spent more time together with my family.
A.Had I known\x05\x05\x05B.If I knew\x05\x05C.If I should know\x05\x05D.Would I know

Answer 1

这是一个有关虚拟语气的题目.答案应该选择A.
首先我们来看主句,也就是后面这句话.the project would have been finished ,它的时态是现在完成时.主句现在完成时,在虚拟语气中,表明整个句子是过去发生的事情.
过去发生的事情的虚拟语气,从句（也就是前面这一句）需要用过去完成时.也就是if i had known how to…….在此句中采用了倒装,把HAD放到句首.
这个讲起来感觉很复杂.其实习惯成自然.多做这类题目就会熟能生巧.有不懂可以百度上联系我.