Moreover,saving energy equals saving our natural resources.两save为什么加ing.还有It seems that everywhere there are classes,conferences,workshops and other opportunities offering a piece of paper upon completion to certify that the paper-holder is qualified to do sth.中offering ,还有In my opinion,attending such class or preparing for the tests.中attending和preparing为甚用ing.还有This is（ particularly ture in case of） the current labor shortage in many plants.
问题描述：
Moreover,saving energy equals saving our natural resources.两save为什么加ing.
还有It seems that everywhere there are classes,conferences,workshops and other opportunities offering a piece of paper upon completion to certify that the paper-holder is qualified to do sth.中offering ,
还有In my opinion,attending such class or preparing for the tests.中attending和preparing为甚用ing.
还有This is（ particularly ture in case of） the current labor shortage in many plants.
答
saving :都是【动名词】.第一个作主语；第二个作宾语.
attending和preparing也是【动名词短语 】,作主语.
upon：根据,基于.
particularly 【ture打错——true】 in case of 在、、、、、、情况下特别如此/正确.
祝你开心如意!