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

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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
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

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
D
前面过完表示对现在的影响,until后+过去式

D哦

D