There are forty-eight ____________ doctors in this hospital.

— How is the _______ in Tiandong?— It’s getting worse and worse. There are always long lines of cars on roads.

We need to come up with a/an________and make a decision at once.

—Tommy, you can never let others know what I have told you today.—Don’t worry. I will keep the ______.

If you want to be healthier, you shouldn't do _____ in the classroom all the        time but do more _____ on the playground.