英语,What's your number?I'm Number 2 in Row 1.为什么number前不加in

You want to know your friend's phone numbe .how do you ask friend? 英语作文 What's your favourite uniform 英语作文 what's your favurity transportation what's your mother? what's your mother what’s your major? what s your favourite What’s your name? What's your name? WHAT'S YOUR AGE? what's your what's your idea? what‘s your name what's your speech What's your dream? what’s your What's your h_______? What's your hobby?