It was funny that when Mary began to weep sadly. A. praisingB. praisedC. to praiseD. havi

问题补充：

It was funny that when Mary began to weep sadly.

A. praising

B. praised

C. to praise

D. having praised

答案：

A. praising

B. praised

C. to praise

D. having praised

解析：考查状语从句的省略式，当主从句主语一致的时候，可以省略从句的主语和be动词，when praised=when Mary was praised，句意：很滑稽当玛丽被表扬的时候开始难过的哭泣。选B。