Question

Tom rushed into the house______ his mother was cooking.

A．a(chǎn)s

B．before

C．while

D．a(chǎn)fter

Answer 1

C

考查連詞的用法。從句意可以看出rushed into the house與was cooking是同時發(fā)生的，故答案選C，意為“當……時候”，引導(dǎo)過去將來時。