—Is this your English-Chinese dictionary? —No, it’s______
A. my sister’s B. a dictionary C. your dictionary
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. sitB. seatC. sit down
The blackboard is _______ the wall(墙).
It is_________ in the wall.
A. on, not B. on, /C. in, no
-- Take your seat, Zhang Hui. -- ________
A. Yes, sir. B. Right, sir.C. Thanks, sir.