题干

—Excuse me, could you tell me ______?

—Sorry, sir. I wasn't there at that time yesterday.

A:how the accident happens

B:how the accident happened

C:how does the accident happen

D:how did the accident happen

上一题 下一题 0.0难度 选择题 更新时间:2015-12-30 08:09:40

答案(点此获取答案解析)

B