求瑞思学科英语的 goodbye song 和hello song 的歌词，十分感谢

在露丝老师听我的家人，挺好听hello songCome on everybody let's have fun.It's time to say hello.we'll be so happy everyone,until it's time to go.Let's sing la la la ,let's dance cha cha cha ,Let's talk English till well done.Let's try .let's fly.At riverdeep always learning.At riverdeep having fun.