It’s not polite to enter the other’s room ________ knocking on the door.
The chair is made_____wood and the paper is made _____wood,too
Why not___ your teacher for help when you can’t finish ___ it by yourself?
When I walk_____ the classroom, all the students are listening carefully.
Please read them carefully. ____ you are, ___ mistakes you’ll make.
______ all the stories, I think the first story is ______ one.