Paul doesn’t have to be made . He always works hard.A. to learnB. learnC. learningD. lear

问题补充：

Paul doesn’t have to be made . He always works hard.

A. to learn

B. learn

C. learning

D. learns

答案：

(答案→)A. to learn

B. learn

C. learning

D. learns

解析：考查动词make用法。make作使役动词，让某人做某事make sb do,在被动语态中须先加to,再加动词原形。所以选A。