听三段对话，每段播放两遍。各段播放后有两个问题。请根据所听到的内容，从A、B、C三个选项中选择最佳答案。
听第一段对话，回答第（1）和第（2）题。
（1）How long has Sam learnt English？
A.For 3 years
B.For 8 years
C.For 12 years
（2）7 How does Sam improve his English now？
A.By seeing English movies.
B.By watching TV shows.
C.By reading English books.
听第二段对话，回答第（3）和第（4）题。
（3）What happened to Ben？
A.He didn't pass the English exam.
B.He didn't pass the Chinese exam.
C.He didn't study hard at Math.
（4）Where does the talk most probably take place？
A.In a classroom
B.In a restaurant
C.In a street
听第三段对话，回答第（5）和第（6）题。​
（5）What does the boy think of being a policeman？
A.Exciting
B.Well-paid
C.Meaningful
（6）What does the girl want to be when she grows up？
A.A doctor
B.A designer
C.A policewoman