The best way your English is an English club.A. to improve . to joinB. improving joini

问题补充：

The best way your English is an English club.

A. to improve . to join

B. improving , joining

C. to improve , join

D. improving, to join

答案：

(答案→)A. to improve . to join

B. improving , joining

C. to improve , join

D. improving, to join

解析：

试题分析:根据语境可知此句的含义提高英语的最好的办法是加入英语俱乐部。其中考查的是动词不定式的基本用法，动词不定式是动词的非谓语形式，可以做定语也可作宾语主语等等；固定短语a way to do sth表示做某事的好方法，to join an English club表示加入俱乐部动词不定式做宾语，故选A。