---If there are _______ people driving, there will be _______ air pollution.---Yes, the air will be fresher.
Tom ___________ his leg yesterday, so he ________ stay at home today.
_________ brave children they are!
In summer, we must sleep with our windows __________ because of the hot weather.
Tom _______ 280 yuan for this bike last week.
I can enjoy the moon ___________ the window every night.