I don't know if it _____ tomorrow,if it ______,I ______ stay at home.

问题描述:

I don't know if it _____ tomorrow,if it ______,I ______ stay at home.
A.rains ; does ; will have to
B.will ; rain ; will to ; have to
C.will rain ; does ; will have rain
D.rains ; will to ; have to
选哪个

选择 A
排除法:最后一个空的主语是I并且是将来时,所以排除c和d ,第二个空位 重复 第一个空 所以使用does 排除b