Please tell me the reason for speaking like that again.（同义句）

题目

Please tell me the reason for speaking like that again.（同义句）
Please tell me ______ _______ ________like that again.
It is said that to teach a man fishing is better than _____（give）him fish.
我们必须立刻开始帮助处于濒危的动物We must start helping the animals ______ _______ ______ _____.

答案

why to speak
to give
which are in danger