问题
选择题
— How do you think these flags? — They're very good.[ ]
A. on
B. at
C. about
D. in
答案
答案：C
搜题请搜索小程序“爱下问搜题”
— How do you think these flags? — They're very good.[ ]
A. on
B. at
C. about
D. in
答案：C