问题
选择题
Where have you been all these days? We are very _____ about your safety. [ ]
A. interested
B. frightened
C. surprised
D. concerned
答案
答案：D
搜题请搜索小程序“爱下问搜题”
Where have you been all these days? We are very _____ about your safety. [ ]
A. interested
B. frightened
C. surprised
D. concerned
答案：D
