问题

Only when he returned______ the truth.

A:he found out
B:did he findout
C:he finds out
D:does he findout

正确答案是：

同类题型

I’d appreciate ________ if you would like to teach me how to use the computer.[ ]

What were you doing this time yesterday—-I ________ my homework at John’s house.

Is her lifestyle the same ______ yours or different

__, she stood and stared while thepolice arrested her husband

_____ Bob and Bill have any CDs—Yes, they____________.