在车流量大的路段，尽量不要变更车道。

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问题判断题

在车流量大的路段，尽量不要变更车道。

答案

参考答案：对

选择题

设集合P={1，2，3，4}，Q={x||x-1|≤2，x∈R}，则P∩Q等于[ ]

A.{1，2}

B.{3，4}

C.{1}

D.{-2，-1，0，1，2}

补全对话，情景问答

	( ) 1. — —She often does her homework. A. What is Jenny doing ? B. What does Jenny do after school ?
	( ) 2. — —He is singing. A. What is Danny doing ? B. Is Danny singing ?
	( ) 3. — —She combs her hair every day. A. How often does Jenny comb her hair ? B. Does Jenny comb her hair every day ?
	( ) 4. — —She goes to school on foot. A. What is she doing ? B. How does she go to school ?