补全对话。
teeth, time, already, finished, bathroom
Tino: What__(1)___ do you go to school?
Billy: At nine o’clock.
Tino: It’s__(2)____ eight forty.
Billy: Oh, no! I’m late. Who’s in the__(3)____?
Sandy: It’s me, Sandy. I’m brushing my__(4)____.
Billy: Can I come in?
Sandy: Yes, you can. I’m__(5)____ now.