in 1636 Harvard is one of the most famous universities in the United States.A. Being fo

问题补充：

in 1636, Harvard is one of the most famous universities in the United States.

A. Being founded

B. It was founded

C. Founded

D. Founding

答案：

A. Being founded

B. It was founded

(答案→)C. Founded

D. Founding

解析：由于 Harvard(哈佛大学)与 found(建立)是被动关系，且因句中有 in 1636，故选 C。注意不能选 B，否则前后两句之间缺少必要的连词。