[-A52] Linda,make sure the tables ______ before the guests arrive.

问题描述:

[-A52] Linda,make sure the tables ______ before the guests arrive.
A.be set
B.set
C.are set
D.are setting
翻译并分析

琳达,在客人来到之前一定要把桌子摆好.分析:makesure引导宾语从句,从句为一个句子.set tables是"摆桌子"的意思,题中tables放在动词set前作从句主语,说明为被动语法,所以用are set(此处为动词set的过去分词)
保证正确,