-------What is itmade Carl determined to give up smoking?-------Watching how his father di

问题补充：

-------What is itmade Carl determined to give up smoking?

-------Watching how his father died in pain from lung cancer.

A. which

B. how

C. who

D. that

答案：

A. which

B. how

C. who

(答案→)D. that

解析：考查强调句型的特殊疑问句形式。其结构为：疑问词+is it that+其他...? 故填that。句意：——是什么使carl决定放弃抽烟？——看到他父亲死于肺癌的痛苦。