题目内容
(题文)The factory its waste into the river, but now it recycles the waste in a new way.
A. used to put B. is used to put
C. used to putting D. is used to putting
A 【解析】句意:那个工厂过去常常把垃圾倒进河里,但是现在它用一种新的方法循环使用垃圾。used to put 过去常常放……; is used to put被用于放……;is used to putting习惯放……;此处与now相对应,应过去常常做某事,故用used to put,故选A。
练习册系列答案
相关题目