Richard:YourEnglishisverygoodIappreciateyourhelpA

Richard: Your English is very good. I appreciate your help.

Alexandra: Thanks. _________.

A． It’s a piece of cake

B． It’s my pleasure

C． It’s my duty

D． It’s my way

正确答案：B
帮助别人之后得到别人的感谢一般的回答就是说It’smypleasure(很乐意效劳)只有B项的回答最符合交际语境及习惯