问题
选择题
It's a good way to improve your speaking skills _____ an English club. [ ]
A. join
B. to join
C. by joining
D. having joined
答案
答案：C
搜题请搜索小程序“爱下问搜题”
It's a good way to improve your speaking skills _____ an English club. [ ]
A. join
B. to join
C. by joining
D. having joined
答案：C