问题
选择题
— When did you become a volunteer?
— Two years ago. I _____this group since then.[ ]
A. have joined in
B. have taken part in
C. have been in
D. have been to
答案
答案：C
搜题请搜索小程序“爱下问搜题”
— When did you become a volunteer?
— Two years ago. I _____this group since then.[ ]
A. have joined in
B. have taken part in
C. have been in
D. have been to
答案：C
