I’m waiting for Jack ________, I will go swimming alone.选择题A. If he doesn’t come B. If he won’t come C. If he will come D. If he is coming并说出为什么选择这个答案

I’m waiting for Jack ________, I will go swimming alone.选择题A. If he doesn’t come B. If he won’t come C. If he will come D. If he is coming并说出为什么选择这个答案
I’m waiting for Jack ________, I will go swimming alone.选择题
A. If he doesn’t come B. If he won’t come
C. If he will come D. If he is coming
并说出为什么选择这个答案

I’m waiting for Jack ________, I will go swimming alone.选择题A. If he doesn’t come B. If he won’t come C. If he will come D. If he is coming并说出为什么选择这个答案
选A,条件状语从句,主句用一般将来时从句就用一般现在时