his poor handwriting, he practises writing Chinese characters with a Chinese writing brush every day.
A. Improving
B. Improved
C. To improve
D. Improve
网友回答
A. Improving
B. Improved
(答案→)C. To improve
D. Improve
解析：考察非谓语动词.句意:为了提高可怜的书写水平,他每天用一支毛笔练习写汉字.不定式做状语表示具体的将要进行的动作,故选A.