-Is it polite to speak or laugh loudly ? -No, I don't think so.
---I hope you’ll have a good trip. ---________.
---May I _________ your CD? ---Yes. How long will you _________ it?
She was laughing and crying_________ the same time.
---_________ is the banana milk shake? ---Five yuan a bottle.
You_________ get up at once, or you’ll be late for class.