In the dark street there wasn’t a single person Mary could turn for help. A. to

In the dark street there wasn’t a single person _____ Mary could turn forhelp.

  A. to whom                            B.to which C. on whom  D. on which

试题答案

【答案】

A

【解析】考察定语从句，该句为定语从句， 先行词是single person, 在从句中作turn to的宾语，turn to sb for help意为向某人求助，to 是介词，后面指人的时候只能选择whom，所以选择A