Waste paper shouldn't ______ everywhere. It's our duty to keep our classroom clean. [ ]A.

题目简介

Waste paper shouldn't ______ everywhere. It's our duty to keep our classroom clean. [ ]A.

题目详情

Waste paper shouldn't ______ everywhere. It's our duty to keep our classroom clean.
[     ]
A. be thrown
B. throw
C. is thrown
D. are thrown
题型:单选题难度:中档来源:河北省模拟题

答案

A

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