Question

Tom rushed into the house______ his mother was cooking.

A. as               B. before           C. while            D. after

 

Answer 1

【答案】

C

【解析】考查连词的用法。从句意可以看出rushed into the house与was cooking是同时发生的，故答案选C，意为“当……时候”，引导过去将来时。