Question

【题目】Look, there’s a box. it ____collecting waste paper.

A．used to B．is used for

C．is used to D．is used as

Answer 1

【答案】B

【解析】

试题分析：句意：看，有一个盒子。它是用来收集废纸的。be used to do sth="be" used for doing /sth被用来做……，be used to doing sth 习惯于做……，used to do sth,过去常常做某事。结合句意，故选B。