精选优质文档-倾情为你奉上译林牛津版模块三Unit 2 单元练习一、单项填空: (15%)1. The twins look alike, but they_ in temperament.A. different B. differ C. transform D. distinguish2.People in power, including professors, should _standards for politeness of college students.A. change B. reach C. set D. break3._ we were worried about was _ they could manage to control the pollution.A. That; how B. That; whether C. What; that D. What; whether 4.-Are all telephone n