In our school libray,there____a number of books on science and the number of them_____growing larger and larger. A.is;are B.are;is C.have;is
Li ping’s brother is an boy.
The CD-ROM is designed Nancy Jackson.
---____ levels does the game have? -Five.
I'm sorry I can't stop with you. I have much work to do.
The windows after school is over.