--- Jack, please don’t play the CD, or please ________. Father is sleeping.--- OK. No problem.
—I don’t like this pen. Could you show me ? —Ok. Here you are.
If you want to be healthier,you have to eat________ and take________ exercise.
—Maria isn’t at home .
—Please have a seat . —Thank you .
—Why don’t you go home now ? —OK. Let’s go.