问题
选择题
— Do you know _____ or not it's impolite to smoke during a meal in France?
— Yes, it's not impolite. [ ]
A. that
B. whether
C. if
答案
答案：B
搜题请搜索小程序“爱下问搜题”
— Do you know _____ or not it's impolite to smoke during a meal in France?
— Yes, it's not impolite. [ ]
A. that
B. whether
C. if
答案：B