man in a black hat is my PE teacher. He often plays football with us.
How _____ students are there in our class?A. much B. many C. about
Today is my first day _____ your school.A. at B. to C. on
There _____ thirty desks in my class.A.is B.are C.be
Go back to your ________, please.A. sit B. seat C. sit down
The blackboard is _______ the wall(墙). It is_________ in the wall.A. on, not B. on, / C. in, no