问题

It was a time ___ racial separation was the law in much of the United States[ ]

A: when
B: that
C: which
D: where

正确答案是：

同类题型

There is much_____in Beijing in winter .It looks very beautiful when it is __________.

Hurry up, or you will _______ the early bus.

So lost in their computers____that leadersat summer computer camps often have to force them to break for sports andgames.

launch in 2005 is successful, Chinawill be the third country ________its astronauts into space

19 The best job is _______ which uses yourskills in doing something together with your interest in the subject