问题补充:
I don’t know if he tomorrow. If he , I will call you.
A. will come; will come
B. will come; comes
C. comes; will come
D. comes; comes
答案:
A. will come; will come
(答案→)B. will come; comes
C. comes; will come
D. comes; comes
解析:此题考查if引导的条件状语从句和宾语从句的相关知识。根据语境可知此句的含义是我不知道他明天来不来,如果来了我就给您打电话。根据语法知识可知第一个分句是if引导的宾语从句,且表示将来的动作,故用一般将来时;后半句是条件状语从句,从句用一般现在时,主句要用将来时,故选B。