精选优质文档-倾情为你奉上1、 环保1. Its our duty to protect our environment。2. It is very important to take care of our environment3. We should not throw litter onto the ground4. We should not spit in a public place/ cut down the trees5. We should plant more flowers and trees。6. We must pick up some rubbish and throw it into a dustbin7. If everyone makes contribution to protecting the environment, the world will become much more beautiful。2、 旅游1. Last Sunday(Saturday,) ,it was sunny(r
