---The box is too heavy to carry. What’s in it? ---Oh, I _________ it ________books.
We can know ____________ computers in Computer lessons.
It’s half past six! Please wake ___________. It’s time __________ school.
– _____ is the red car over there? – It’s my aunt’s.
Look! The twins are talking _____ the visitors ____ their school lives over there.
Mr. Green is _____ new teacher this term. We all like _____ very much.