.The artist made up his mind to devote all he could ____his English beforegoing

题干

.The artist made up his mind to devote all he could ____his English before
going abraod.

A．improving

B．to improve

C．imprve

D．to improving

上一题下一题 0.85难度单项选择更新时间:2010-09-29 11:12:00

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