请回答下列问题,并解释出用法

题目

请回答下列问题,并解释出用法
1.If it () rainy tomorrow,I won`t go to work.
A.is B.be C.will be D.will
2.I don`t think he looks like his mother,()?
A.do me B.do you C.does he D.doesn`t he
3.You`d better take a rain coat.Because () to rain.
A.it`s going B.it will C.there`s going D.it going

答案

1.A
2.C
3.A
1.主将从现,从句用现在时表将来
2.反义疑问句,陈述部分是否定时,疑问部分用肯定
3.be going to将要,will后面不能加to