Question

【题目】Frank ______ to see his grandpa if he ______ free tomorrow.

A. will come, is B. will come, will be

C. comes, is D. comes, will be

Answer 1

【答案】A

【解析】

试题分析：句意：如果明天有空，Frank将会来看望他的爷爷。If引导的时间状语从句，从句用一般时，主句用一般将来时。故选A。