She was ------(serve)in the kitchen when the light went out.
问题描述:
She was ------(serve)in the kitchen when the light went out.
答
当灯光熄灭的时候,她还在厨房里(工作)。
答
当灯光熄灭的时候,她还在厨房(工作)。
答
serving
过去进行时,用动名词