请教关于英语语法,这两个题目选什么,有什么区别
请教关于英语语法,这两个题目选什么,有什么区别
1 What should we do if it ____ tomorrow.
A should snow B would snow C snow D will snow
2 What should youdo if it ____ tomorrow.
-We have to carry on ,since we got everything ready.
A rain B rained C will rain D is raining
这两个句子怎么区别?