I will visit my grandmother if she ｛｝ free tomorrowA isB is notC_英语解答

I will visit my grandmother if she ｛｝ free tomorrow
A is
B is not
Cwill is
Dwill not

人气：118 ℃　时间：2020-03-25 17:55:35

解答

选A,
BD语义不符,
C用将来式不对,因为在这种情况下主句将来式条件从句应为一般现在式