—Do you usually ________ a while(一会儿) before you go to bed?—Yes. Enjoying the cool air is good for my health.
— Nancy, would you mind turning down the music? Your father is sleeping. —________.
I really don’t know ___________.
—What should I do, doctor? —______healthy, you should take more exercise.
I will stay with you the doctor comes to help you.
Nowadays of business letters are written in English.?