单项选择题

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

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单项选择题

Frank：Hey，John.What makes you so happy？
John：You know what.I’ve just got a new job with a computer company.
Frank：（）!

A．Oh，so happy
B．Oh，good luck
C．Oh，such a job
D．Oh，congratulations

单项选择题

The field of artificial （）is a new branch of computer science.

A． intelligence
B． talent
C． capability
D． power