Time should be made full use of _________ ourselves.A．improvingB．to improveC．for_刷题宝

题干

Time should be made full use of _________ ourselves.

A．improving

B．to improve

C．for improving

D．improve

上一题下一题 0.85难度单项选择更新时间:2010-11-23 04:11:54

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