My father has worked there .A. since five yearsB. since 1990C. for five years agoD. five y

问题补充：

My father has worked there .

A. since five years

B. since 1990

C. for five years ago

D. five years

答案：

A. since five years

(答案→)B. since 1990

C. for five years ago

D. five years

解析：一般能和现在完成时连用的时间状语为since+一段时间 ago 或for+一段时间，或since+一般过去时态的句子，或since+过去时间，故选B，符合题意。