W‘ll go boating if it ------cold tomorrowA.doesn't B.won't C.isn't 理由

W‘ll go boating if it ------cold tomorrowA.doesn't B.won't C.isn't 理由
W‘ll go boating if it ------cold tomorrow
A.doesn't B.won't C.isn't 理由

W‘ll go boating if it ------cold tomorrowA.doesn't B.won't C.isn't 理由
C isn't 最适合
A 是绝对不可能啦
B 在won't后面要加be

c
if后面将来时要改成现在时