—I want to know if you __ to the meeting this afternoon.——I will if I __ free.

问题描述:

—I want to know if you __ to the meeting this afternoon.——I will if I __ free.
A.will come;am B.come ;am C.will come;will be D.come;will be

A
题中第一个if 意思是“是否”引导宾语从句 主句是一般现在时 从句时态根据实际情况而定 this afternoon 所以用一般将来时 填will come
第二个if意思是“ 如果”引导条件状语从句 主将从现 填am