Question

3.    He joined the English club____________ . 

A.   to improve his speaking English

B.    practicing his speaking English

C.    to practice his spoken English

D.   improve his spoken English

Answer 1

3.    C考查动词不定式。两个动词连用，用动词不定式作目的状语，排除B和D。"英语口语"应该用spoken English表达，排除A。故选C；。