Time should be made good use of our lessons well. A. learningB. learnedC. to learnD. hav

问题补充：

Time should be made good use of our lessons well.

A. learning

B. learned

C. to learn

D. having learned

答案：

A. learning

B. learned

(答案→)C. to learn

D. having learned

解析：考查的是不定式做目的状语。此句是利用被动结构设置陷阱。转化为主动态是：(We) should make good use of time to learn our lessons well。