---Dave, we will leave in 10 minutes. Are you ready? ---No, I our guide book and towels yet.
— _____ does he live from our school? — About thirty minutes’ walk.
Tom usually gets up _____ half past six _____ Saturday morning.
Mr Green is our new teacher this term. He teaches _____ history.
We must protect (保护) animals like elephants, because they’re _____.
There are _____ teachers in our school.