I am waiting for my friend._____,I will go swimming alone.A.If he doesn`t comeB.If he won`t come

问题描述:

I am waiting for my friend._____,I will go swimming alone.A.If he doesn`t comeB.If he won`t come
C.If he will come D.If he is coming

A ( 由IF引导的状语从句,遵循‘主将从现’原则)