Complete the sentences with prepositions, where necessary.
1.Our parents and our teachers influence__________our lives a lot.
2.how is your grandmother?-- She is______________quite good health for her age.
3.Are people interested in ecology________________nowadays?
4.We didn't want to leave the zoo________________looking at the monkeys.
5.if we protect plants_____________destruction,they will give us air to breathe.
6.there must be good laws_________________pollution.
7.together we'll be able to save rainforests______________the danger of destruction.