Выберите нужное слово в скобках:
1) The teacher thanked his pupils for their good (nature / behaviour).
2) The latest (developments / enjoyments) in science often surprise us.
3) Everyone would like to live in an (unpolluted / polluted) world with clean air and clean water.
4) Wild animals are happier in their (nature / natural) habitat than in the zoo.
5) The twins divided the chocolate (among / between) them.
6) The house stood in the forest (between / among) the green trees.
7) It’s good manners to take (down / off) your hat when you enter a house.
8) There are a number of simple rules that I hope you’ll take (up / in).
9) When you have a (headache / toothache), you should go and see a dentist.
10) Smoking and taking drugs are dangerous (from / for) people’s health.