It’s ten years since he his hometown.A. leftB. leavesC. has leftD. is leaving

问题补充：

It’s ten years since he his hometown.

A. left

B. leaves

C. has left

D. is leaving

答案：

(答案→)A. left

B. leaves

C. has left

D. is leaving

解析：it’s+段时间+since引导从句，从句常用过去式。