leave a note on one's

leave a note on one's leave a note和take He saw a note ____ on hes deskwhen he came back. A.leave B. on a personal note note on a book 一张100元的纸币是a hundred-yuan note,a one-hundred-yuan note还是 a on take one's leave leave a note to sb和leave a note for sb哪个对?3Q one on one's this note is only reminder.It's( ) A.nothing B.no one C.noth harm/touch a hair on one's 短语stay in , leave for,upon one's arrival on doing sth 什么意思?