问题详情

—I cannot find Tom anywhere —He _________ have been off long I heard him make a call just now A shouldn't B can't C mustn't D needn't No matter who he is, young or old, people's state of mind tends to keep _____ with the rapid change of societ


A、contct

B、progress

C、touh

D、pace

时间:2021-07-18 00:04 关键词:

答案解析

B