Question

Frank ________ to see his grandma if he ________ free tomorrow．

[　　]

A．will come, will be

B．comes, is

C．will come, is

D．comes, will be

Answer 1

答案：C
解析：

因为此句考查的是if引导的条件状语从句，当主句是将来时，那么从句用一般现在时表示将来时，所以正确答案是C。