--- What are you doing here, Mrs. White?---I'm waiting f Wap版

试题详情及答案解析

--- What are you doing here, Mrs. White?
---I'm waiting for my son. He________ back from school.

A．hasn't come	B．won't come
C．doesn't come	D．didn’t come

答案：A

试题分析：句意：---怀特夫人，你在这儿做什么？---我在等我的儿子。他还没有从学校返回。故用现在完成时，选A。
考点:考查现在完成时的用法。