Welcome _____ our school.
A. on B. for C. to
--Is that the computer room?
--No, ________.
A. it is B. is itn’t C. it isn’t
Do you have ______ art room?
A. aB. an C. the
How many _______ are there in your class?
A. students B. student C. student’s
--Where’s the library?
--It’s____ the first floor.
A. inB. on C. at