—What do I have to do ______ I want to be thinner?—Eat less, exercise more.
All of the doctors have worked for a long time, but ________ of them stop to have a rest.
It’s raining heavily. I’d rather ________ in bed ________ out.
Having ________ exercise every day will do great good to your health.
— I’m new in Wuxi.— Take a map of Wuxi with you. You’ll find it of great ________ in helping you to get round Wuxi.
Look at the sign! It says “No Smoking!” You ________ smoke here. It’s dangerous.