Question

【题目】我正在睡觉, 就在这时闹钟突然响了起来。

I was sleeping when the alarm clock ________.

Answer 1

【答案】went off

【解析】

go off“（闹钟）响了”，根据Sb was doing sth when sb/sth did sth表示当……时候，某人正在做某事，此处用一般过去时，故填went off。