if it——,we will go to the park tomorrow.A,doesn't rain B,isn't rain 选那个 为什么

问题描述:

if it——,we will go to the park tomorrow.A,doesn't rain B,isn't rain 选那个 为什么

If it (A,doesn't rain),we will go to the park tomorrow.
如果不下雨的话,我们明天就去公园.
rain在这里是个实义动词,它的否定式是要加助动词doesn't,而不是isn't.