动词时态的

题目

动词时态的
Allen ____ her keys in the office.So she had to wait until her
husband______.
A.has left;comes B.left;came
C.had left;came D.had left;would come
选哪个,为什么,

答案

C
忘了钥匙在等待之前,所以跳一级用过去完成时
until的句式如果一般主句将来,从句现在
但是现在主句是过去,从句当然也是一般过去式