Question

I was doing my homework in my bedroom _______the light went out. I did it with a candle on.

A．which

B．while

C．when

D．where

Answer 1

C

試題分析：句意：我正在我的臥室寫作業，突然這時等滅了，我點了一支蠟燭做的作業。while “在......期間”，表示一段時間，引導的狀語從句的謂語動詞是持續性動詞；when “在這時”，表示時間點，引導的狀語從句的謂語動詞是持續性動詞或瞬間性動詞。go out 是瞬間性動詞，所以此處用when 來引導句子。故選C。