We in the same school for three years.A. were studyingB. have studiedC. will studyD. study

问题补充：

We in the same school for three years.

A. were studying

B. have studied

C. will study

D. study

答案：

A. were studying

(答案→)B. have studied

C. will study

D. study

解析：考查时态。for+一段时间和since+时间点常与现在完成时连用。句意“我们同校已经三年了。”故选B。