2)I really appreciate it.很感谢

　　3)You're one in a million.你真是大好人

　　4)You're the greatest.你太好了

　　5)I'm truly grateful for your help.感激你的帮助

　　6)Your help was greatly appreciated.非常感激你的帮助

　　7)I'd like to express my gratitude.表达我的谢意