16.Mrs Smith----- her keys in the office so she had to wait until her husband ------home.A has left;comes B left;had comeC had left;would come D had left;came

问题描述:

16.Mrs Smith----- her keys in the office so she had to wait until her husband ------home.
A has left;comes B left;had come
C had left;would come D had left;came

D

D哦

D
前面过完表示对现在的影响,until后+过去式