We in the same school since three years ago. A. studyB. were studyingC. will studyD. have

问题补充：

We in the same school since three years ago.

A. study

B. were studying

C. will study

D. have studied

答案：

A. study

B. were studying

C. will study

(答案→)D. have studied

解析：试题分析：句意：自从三年前我们就在同一所学校学习。从时间since three years ago 可知是现在完成时的标致。从过去的一个时间点开始持续到现在或者是将来，用现在完成时,现在完成时的构成是：have+动词的过去分词。Study的过去式是studied。故选D。