It five years since he Beijing.A. was leftB. has been has leftC. is leftD. is going to

问题补充：

It five years since he Beijing.

A. was, left

B. has been, has left

C. is, left

D. is going to be, has left

答案：

A. was, left

B. has been, has left

(答案→)C. is, left

D. is going to be, has left

解析：句意：自从他离开北京已经有五年了。分析：这是一个固定的句型：It is +时间+since+从句（从句用一般过去时）。故选C