It is ten years since we each other last time.A. seeB. have seenC. sawD. had seen

问题补充：

It is ten years since we each other last time.

A. see

B. have seen

C. saw

D. had seen

答案：

A. see

B. have seen

(答案→)C. saw

D. had seen

解析：since构成的从句，since后遇到过去的时间last time，通常从句用一般过去时see的过去式为saw，故本题选C。