The old man has lived in this city.A. for 2001B. since 10 yearsC. since 10 years agoD. for

问题补充：

The old man has lived in this city.

A. for 2001

B. since 10 years

C. since 10 years ago

D. for 10 years ago

答案：

A. for 2001

B. since 10 years

(答案→)C. since 10 years ago

D. for 10 years ago

解析：C 考查现在完成时。for+一段时间或since+时间点或一般过去时的句子，用现在完成时，A项for+的时间点，排除；B项since+的时间段，排除；D项for+的时间点，排除。只有C项since+的时间点，是正确的。