语法填空

问题描述:

语法填空
Since shopping there is so simple and attractive,the show is filled with buyers all the time.
(为什么用is filled,
前面有is,为什么不用非谓语动词filled?

这是一个状语从句加这句的结构 Since shopping there is so simple and attractive是状语从句,有连接词since,后面的the show is filled with buyers all the time.是主句,凡是句子当然要有主语加谓语的基本结构,is filled with 是谓语结构