What do you do in your spare time: What do you do in your spare time?
She is too young to go to school.
A wooden bridge is under construction.
We should reduce the use of plastic bags.
Saving energy and water can help us save money: saving energy and water can help us save money
Eating natural food is healthier than eating processed food: eating natural food is healthier than eating processed food.
If everyone believes that what they do will affect society, the form will change greatly: if everyone believes that what they do will affect society, the form will change greatly.
The earth belongs to everyone, and we should cherish it and try our best to save it: the earth belongs to everyone, and we should cherish it and try our best to save it.