精选优质文档-倾情为你奉上6B U4基础练习题一、单项选择题1.A good student must in class. A. listens to the teacher B. listening to the teacher C. listen to the teacher2.What must you on the road? A.dont do B.do not C.not do3._ we wait when the man is red? A. Can B. Are C. Must4._I have your ruler? A. May B. Must C.Should5._I play computer games? No ,you _.Its late. A.Can, mustnt B. Must, mustnt