B:"Hello" 

B:"How are you?" 

A:"Thank you." 

A:"Oh,Fine,thanks." 

A:"Sorry,I”m afraid." 

B:"Don”t be afraid." 

A: "Where do you come from?" 

B":I”m from Germany." 

B:"Have you got a sister or a brother?” 

A: "No,I haven’t. " 

B: "Why? " 

A: "Because Chinese policy doesn’t allow. " 

B: "Why? " 

A: "Because there are too many people in China. " 

A: "Nice to meet you. " 

B: "Nice to meet you,too. " 

C:Chinese boy,very good. "