Time should be made full use of ourselves.A. improvingB. to improveC. for improvingD. imp

问题补充：

Time should be made full use of ourselves.

A. improving

B. to improve

C. for improving

D. improve

答案：

A. improving

(答案→)B. to improve

C. for improving

D. improve

解析：在英文中，表示目的用动词不定式to do，本题表示充分地使用时间的目的，故本题选B。