根据句意,选用if或unless连接句子

题目

根据句意,选用if或unless连接句子
1.Fish die.There's no water or air.
2.My baby sister never cries.She is hungry.
3.I run every morning.Bad weather stops me.
4.You are more careful.You'll make a mistake.
5.I'm free this Sunday.I will visit you.

答案

1.Fish dies if there's no water or air.2.My baby sister never cries unless she is hungry.3.I run every morning unless bad weather stops me.4.You'll make a mistakk unless you are more careful.5.I will ...