问题
选择题
______ it doesn't rain next Sunday, we will go to visit the Oriental Pearl TV Tower. [ ]
A. Unless
B. If
C. When
D. How
答案
答案：B
搜题请搜索小程序“爱下问搜题”
______ it doesn't rain next Sunday, we will go to visit the Oriental Pearl TV Tower. [ ]
A. Unless
B. If
C. When
D. How
答案：B