问题
选择题
— Would you like to play tennis with me ______ it doesn't rain tomorrow?
— Sure, ______ I am busy. [ ]
A. if; since
B. whether; but
C. if; unless
D. because; until
答案
答案：C
搜题请搜索小程序“爱下问搜题”
— Would you like to play tennis with me ______ it doesn't rain tomorrow?
— Sure, ______ I am busy. [ ]
A. if; since
B. whether; but
C. if; unless
D. because; until
答案：C