It was at 8 o’clock I went back home last night.A. thatB. when C. whichD. what

问题补充：

It was at 8 o’clock I went back home last night.

A. that

B. when

C. which

D. what

答案：

(答案→)A. that

B. when

C. which

D. what

解析：考查强调句：句意：我昨晚就是在8点回到家的。强调句的结构是：it is/was+强调部分+that+其余部分，判断是否是强调句的方法是;去掉强调结构，如果这句话仍然成立就是强调句，这题如果去掉强调句是： I went back home last night at 8 o’clock .所以是强调句，选A。