For the safety, everyone _________ obey the traffic rules when he is driving or walking.
—Linda, ______ do people in Thailand celebrate the Water Festival?—They throw water at each other.
Peter likes to improve his health ______ doing sports every day.
______ mooncake on the plate looks delicious. I want to eat ______.
—-Would you please help me to take these books downstairs?—-_______ .
There is _______ orange juice in the bottle. So I can drink it.