What place is it?

问题描述:

What place is it?
Have not you seen that we ____ back where we _____?
A.were;had been B.were;have been C.are;were D.are ;are
选c的原因和理由

选C
问题是这是什么地方
答曰:难道你没看到我们现在回到了我们到过的地方,故选C