You are toohim. After all he has only been in this field for no more than a year.A. mistak

问题补充：

You are toohim. After all he has only been in this field for no more than a year.

A. mistaken about

B. disappointed at

C. particular about

D. sorry for

答案：

A. mistaken about

B. disappointed at

(答案→)C. particular about

D. sorry for

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