B)听下面2段对话，每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。每段对话读两遍。
( )4.Which floor does Susan five on?
A. On the 8th floor B. On the 6th floor C. On the 4th floor
( )5 What are they talking about?
A. Publie signs B. Finding the way C. How to cross the road
C)听下面2段对话，从题中所给酶A、B、C三个选项中选出最佳选项。每段对话读两遍。
听第一段对话，回答第6-7小题
( )6. What food does Peter eat a lot?
A. Meat and fish B. Meat and eggs C. Vegetables and fruit
