We're not sure if it( )tomorrow.If it( ),we won't climb south hill.A.will snow,snows B.will snow,will snow C.snows,snows D.snows,will snow 选哪个?为什么?

问题描述:

We're not sure if it( )tomorrow.If it( ),we won't climb south hill.A.will snow,snows B.will snow,will snow C.snows,snows D.snows,will snow 选哪个?为什么?

选D.这个题考得是if的用法,它在前半句引导的是状语从句,用一般现在时表将来,后半句不是状语从句,就该用正常的将来时态

A
第一个if,做“是否”讲,可以后面接will表示将来
第二个if,做“如果”讲,后面不接will,表示假设