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177. You should turn to Mrs. Green. She is the key figure in the company. The underlined part probably means _____.

A. a person who has the key                           B. a very important person

C. a new product__________                                D. a new policeman

You should turn to Mrs. Green. She is the key figure in the company. The underlined part probably means _____.

　 A. a person who has the key　　　 B. a very important person

　 C. a new product　　　　　　　　 D. a new policeman