—Do you know_______?—Yes. At about twelve. I was just about to go to bed. A．when he came backB．when

题目简介

—Do you know_______?
—Yes. At about twelve. I was just about to go to bed.

A．when he came back

B．when he will come back

C．when did you go to bed

D．whether he goes to bed late

题型：单选题难度：中档来源：不详

考查宾语从句。从句为特殊疑问句，常选择what,when,where,which,who,how等的疑问代、副词作连接词时，语序要用陈述语序。根据答语是一般过去时，另根据后句句意为“是的。大约在十二点。我刚要睡觉。”故选A。