Sit _____ you like.
--Mary, remember to come and see us next time you’re in town. --________.
The Mid-Autumn Festival is ________ special holiday for most Chinese when ________ whole family will get together.
Are you still here?You were here half an hour ago. Who for?
—Dick has a bad cough because of smoking.—Why doesn’t he ?
it is to jump into a pool or go swimming in a river in summer!