The project a success as the income of the company increases every year.A. is provedB. ha

问题补充：

The project a success as the income of the company increases every year.

A. is proved

B. had proved

C. has proved

D. has been proved

答案：

A. is proved

B. had proved

(答案→)C. has proved

D. has been proved

解析：考查时态。句意“那项计划已经被证明是一个成功，因为公司的收入每年都在增加。”叙述的是现在的情况，排除B；动作发生在过去，对现在造成的影响，用现在完成时。故选C。