A: Listen! Is it Tina singing in the next room?B: No, it __________ be her. She is still in Shanghai.

When he was a student, he would get up early and work late into night, believing “______________”

Alice, is this you dictionary?— Oh，no, it’s not _______. Ask Tom. He is looking for ____.

Which floor do you live _________? —The first floor. I live _________ Room 112. [ ]

Who are you ________?