问题
选择题
_____on the MSN, some people often use '88' foe 'good-bye'. [ ]
A. When chat
B. When chatted
C. When chatting
D. When to chat
答案
答案：C
搜题请搜索小程序“爱下问搜题”
_____on the MSN, some people often use '88' foe 'good-bye'. [ ]
A. When chat
B. When chatted
C. When chatting
D. When to chat
答案：C