Samuel Clemens as Mark Twain was one of the most famous American writer.A. to knowB. to

问题补充：

Samuel Clemens, as Mark Twain, was one of the most famous American writer.

A. to know

B. to be known

C. known

D. Knowing

答案：

A. to know

B. to be known

(答案→)C. known

D. Knowing

解析：可联系答.案.网客服索取。