Question

—Was it 11 o'clock ________ your father came back last night?

—Yes, he is always coming back so late.

A．that B．while

C．when D．until

 

Answer 1

C

【解析】C 考察状语从句。本句中的it代表世界，故使用表示时间的连词when引导时间状语从句，故C正确。