With a good of both Chinese and English she had an advantage over the other interviewees.

问题补充：

With a good of both Chinese and English,she had an advantage over the other interviewees.

A. program

B. guidance

C. command

D. ability

答案：

A. program

B. guidance

(答案→)C. command

D. ability

解析：本题考查名词。句意：由于精通汉语和英语，她比其他人更有优势。a good command of精通……。