问题补充:
.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
答案:
A. improving
B. to improve
C. imprve
(答案→)D. to improving
解析:考查不定式做目的状语,句意是:这个艺术家决定在出国前尽最大力量提高英语,to improve…为了提高。是目的状语。选D。