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
—What is your mother? —__________.
A. She is my mother B. She is a policeman C. She is a nurse
—_____are you ? —I’m five.
A. How old B. Who C. How
