Forests are very important because some birds make their nests _________ trees and some small animals and insects look for some fruit _________ trees as their food.
A.In in B.on ,in C.on, on D.in, on
随着社会的发展，我们的生活越来越便利。但是网络抢走了我们的锻炼时间，垃圾食品威胁着我们的健康。请根据下面的提示，写一篇关于中学生如何健康生活的英语短文。
提示 : Ways to live a healthy life.
1、Exercising: do exercise every day
2、Eating: develop good eating habits
3、Sleeping: go to bed early
4、........
要求：
1、短文须包括所有提示内容，可适当发挥；
2、短文中不得出现真实的人名、校名和地名；
3、词数80个左右（开头已给出，不计入总词数）。
It's important for us to live a healthy life.__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Some ________ (调查) on students' daily habits will be done this Friday.
We don' t think it is ________ (必须的，必要的) to give students too much homework. They need more time for hobbies.
American schools have many courses, ________ (相似的) to those in Canadian schools.
Many foreigners enjoy Chinese fashion, ________ (尤其) the Tang costume.
