I washed my hands and ______ supper while Mother was ______ supper in the kitchen.A.prepared for,

题目

I washed my hands and ______ supper while Mother was ______ supper in the kitchen.A.prepared for,
I washed my hands and ______ supper while Mother was ______ supper in the kitchen.
A.prepared for,preparing
B.prepare,prepared
C.prepare for,prepared
D.prepared,preparing for

答案

选A
prepare for supper 为晚餐做准备
prepare supper 准备晚餐
句子 = while+ 从句 从句 后一般跟 进行时态