Today is Sunday. It's a nice day. Many people are at the ____. Some are playing volleyball. Some are ____shells and some are ____the sunshine. Peter is writing a ____.He wants to ____it in a bottle. Paul wants to know what it is about.
如图是某同学设计的自动浇花机模型。
连词成句。
人在齐胸深的水中时,会感到轻飘飘的,这是因为 ( )
《天上的街市》一诗表现主题的方法是( )