Translate the following sentences into Chinese,thank you!
1.By the end of that time he was looking back on his school-days as a time of great cariety and satisfaction.
2.But tell that to the government of Jordan,which has drawn its underground water almost dry since Israel diverted much of its largest water source,the river Jordan.
3.There are crises of underinvestment ,of political conflict overrivers that cross national boundaries,and of plain idiotic water management.
4.When the time comes for election of class or student body officers,you will be mentioned as a possible candidate by your closer friends,and this word will reach other groups until you are given a chance to declare yourself a candidate without seeming immodest.
纠正以下，第一句的cariety应为variey