—My cousin often has nothing for breakfast, _____ she?— _____. Because she often gets up late and is afraid of being late for school.
What can we students do _____ the environment?
—How long have you lived in this town? —_____ 2001.
There are five people in the room, but I know _____.
Don’t give up _____ you will never succeed.
Trees can stop the sand _____ towards the rich farmland in the south.