You don’t know _____ I want to see you again. It’s a year since I last saw you.
Don’t drink ____ water. There is no washroom on the bus.
____ is good _______ your health.
After hard work, he felt __________ tired to walk.
— Look at these flowers. —__________ beautiful they are!
— How many students are there in your school? —______ students, I think.