题目内容:
Only when the CIA Director David was forced to resignthat it's hard to keep our e-mail secret.
A.we realized B.realized we C.did we realize D.we did realize
参考答案:
答案解析:
Only when the CIA Director David was forced to resignthat it's hard to keep our e-mail secret.
A.we realized B.realized we C.did we realize D.we did realize