◎ 题干
I don’t understand why they don’t have the report. It _________  to them a week ago.
A.is sent B.was sent C.will be sent D.had been sent
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“I don’t understand why they don’t have the report. It _________ to them a week ago. A.is sent B.was sent C.will be sent D.had been sent…”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。