He always keeps silent when others are talking excitedly inwardly he is a man full of pa

问题补充：

He always keeps silent when others are talking excitedly, inwardly he is a man full of passion.

A. and

B. for

C. so

D. yet

答案：

A. and

B. for

C. so

(答案→)D. yet

解析：答案：D考查并列连词。句意：在别人兴高采烈地讨论的时候他总是保持沉默，然而，内心深处他其实是一个激情澎湃的人。空前后为转折关系，故用yet，表示“但是，然而”。