The letter I had been looking forward _____at last.A.to come B.to comingC.to came D.came

问题描述:

The letter I had been looking forward _____at last.
A.to come B.to coming
C.to came D.came

look forward to +v-ing 固定短语,高一必修3去查

D came

C
词组为look forward to 修饰letter
=the letter came at last !

C.to came

C.to came 保证对

B,
look forward to +v-ing

D
I had been looking forward 是后置定语
真正动词为came