Unit 3 姓名________ 学号________ 班级________ 得分_______一、听力理解 (略)二、单项选择 (每小题 1 分，共 15 分) ( )31. — Your new car looks wonderful!— Thanks, but it cost me _____ arm and a leg.A. aB. an C. theD. /( )32. — Is your sister good ______ sports?— No, but she is talen...
