新概念英语二习题Lesson-45-46(共4页).doc

新概念英语2 Lesson 45 A Clear Conscience 问心无愧 I. 语法与词汇知识1. To heal the wounded and to _ the dying is a doctors duty. A. holdB. saveC. helpD. take 2. I cant decide _ to go and see Linda or not. A. whetherB. ifC. as D. so3. He returned the book to library _ time, so he was not fined. A. at B. over C. in D. about4. I need a cloth to wipe _ the mud in the classroom. A. ofB. outC. upD. off 5. I w