The children talked so loudly at dinner table that I had to struggle A. to be heardB. to h

问题补充：

The children talked so loudly at dinner table that I had to struggle

A. to be heard

B. to have heard

C. hearing

D. being heard

答案：

(答案→)A. to be heard

B. to have heard

C. hearing

D. being heard

解析：句意，孩子们在饭桌旁说话太吵闹了，我努力使得自己被听到。struggle to do sth,意思是努力做某事 。“hear”和其逻辑主语“I”之间是被动关系，故用被动语态。