外研版九年级下册-4.2 Unit 2 We must keep the camp clean（练习）（解析版）.doc

Unit 2 We must keep the camp clean.（基础篇）一、单项选择。1.— Remember the book to the library.— But I remembered it.A.to return; to returnB. returning; to return C. returning; returning D.to return; returning【答案】D————【解析】句意：记得把这本书还给图书馆。但是我记得把它还回去了。remember ...