There is an art room ___ the first floor.
A. in B. at C. on
There ________ some bread and eggs on the plate（盘子）.
A. is B. am C. are
How many ________ are there in the school?
A. librarys B. classes C. glass
There are four ________ students in our school.
A. hundred B. hundreds C. hundreds of
Which is short for (缩略) “television (电视)? ”
A. UN B. TV C. IQ
There are some __________ on the hill.
A. apple tree B. apple trees C. apples tree
