解釋:
If you climb the tree , you will hurt yourself.
Your will stay after school if you don't do your classwork.
If you draw on the walls ,you will have to clean them up .
If you play the classroom , i will make you stand by the wall .
If you come to school late , you will have to go to the school office first .
You will pass the tedt if you listen carefully in class .
Your parents will be happy if you do will in school .
I will give you a present it you study hard.