问题补充:
He can speak French, German, and Russian, English.
A. not mentioning
B. no mention
C. not to mention
D. not to be mentioned
答案:
A. not mentioning
B. no mention
(答案→)C. not to mention
D. not to be mentioned
解析:考查固定短语。not to mention更不用说,更不消说。句意:他会讲法语,德语和俄语,更不用说会讲英语了。所以选C。