1.He said he would come to see us as soon as he _____ his work.
A.would finish B.finshes C.finished D.has finished
答案是C，为什么？
2.Have't you forgot ______ to me at the meeting?
A.to be introduced B.to introduced C.introducing D.being introduced
答案是D，请说一下原因？
3.Each car ______ quite good,but they each ______ expensive.
A.seems,is B.seem,is C.seems,are D.seems,is
答案是C,为什么后面一句里要用are?
參考答案:1.条件句主将从现，过去时是主句过去将来时，从句过去时
2.foget doing表示做过但忘记了
3.主语是they，each表修饰