﹣﹣﹣ New kinds of morning exercise like doing dancing are becoming popular．

﹣﹣﹣ _____ can help us keep fit and have fun．（　　）

You can't decide whether or not you like something until you try it， _____it's important to try something new．（　　）

﹣Parents should let children _____home and find more about the world．

﹣After all， birds should fly freely in the sky．（　　）

When we read a piece of news online， we'd better make sure it's _____before sending it to others． If not， we may spread something bad．（　　）

To keep our city beautiful， the _____are always very busy in the streets．We shouldn't throw rubbish everywhere．（　　）