聽三段對話，每段播放兩遍。各段播放后有兩個問題。請根據所聽到的內容，從A、B、C三個選項中選擇最佳答案。
聽第一段對話，回答第（1）和第（2）題。
（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.
聽第二段對話，回答第（3）和第（4）題。
（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
聽第三段對話，回答第（5）和第（6）題。?
（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