根据所给提示将下列各句译成英语。
回家前，我们应该和老师道别。
You ____________________________________ before going home.
如何与周围的人相处是你离开学校后要学的第一课。
_________________________________the people around you is the first lesson you have to take after leaving school.
防止这样的事故再次发生，我们人人有责。
It is our duty ________________________________________ again.
他沉迷于玩电脑游戏，结果门门功课都不及格。
He _________________________________________. As a result, he didn’t pass any subject.
这道数学题太难，他做不出来。
This Maths problem is __________________________________ work out.