Question

【题目】妈妈给我检查作业时，灯突然灭了。(while)

Answer 1

【答案】While Mum was checking my homework, the light suddenly went off.
【解析】短语：go off熄灭；check检查；while当……的时候，通常用过去进行时态。所以答案是：While Mum was checking my homework, the light suddenly went off.。