He said that he had met her two years .A. beforeB. agoC. for 2 yearsD. since 2 years ago

问题补充：

He said that he had met her two years .

A. before

B. ago

C. for 2 years

D. since 2 years ago

答案：

(答案→)A. before

B. ago

C. for 2 years

D. since 2 years ago

解析：two years before 和two years ago 都表示“两年以前”，但是时态不同。two years before 用于完成时，two years ago 用于过去时。for 2 years两年，用于完成时态，和持续性动词连用；since 2 years ago自从两年前以来，用于完成时态，和持续性动词连用句意：他说他两年前见过她。从句是过去完成时态。故选A。