Some of our industrial products may well be said advanced level.
A. to reach
B. to be reaching
C. to have reached
D. to have been reaching
网友回答
A. to reach
B. to be reaching
(答案→)C. to have reached
D. to have been reaching
解析：be said to have done表示“据说已经……”，句意：我们的某些工业产品完全可以说达到了先进水平。