Mina waved to Nate, who waved back, and called hello to her teacher.

　　米娜向內特揮手，內特也向她招手，并和她的老師打招呼。

　　Shall we say "Hello" to our new English teacher?

　　我們去問(wèn)候我們的新英語(yǔ)老師好嗎？

　　Hello! I'm your new music teacher.

　　你好！我是你們的新音樂(lè )老師。