Paul doesn't have to be made .A. studyB. to studyC. studiedD. studying

问题补充：

Paul doesn have to be made .

A. study

B. to study

C. studied

D. studying

答案：

A. study

(答案→)B. to study

C. studied

D. studying

解析：这题考查不定式：make sb do“使某人做”，被动式还原to，句意是：Paul不必被逼着学习。选B。