The art club is for members only. You can’t go in ____ you are a member.
| A．unless | B．because | C．if | D．though |
My best friend Jack looks happy, and he always ______ a smile _____ his face.
| A．wear; on | B．put; in |
| C．wears; on | D．wears; in |
The number of the books in our library _________ about 20,000.
| A．is | B．are | C．has | D．have |
Betty iscareful as I, but I’mthan you.
| A．as; much careful | B．so; more careful |
| C．as; much more careful | D．so; very careful |
Our school has two months ______ in the summer time.
| A．away | B．of | C．out | D．off |
_______ all the pop singers, I like Xu Song ________ because of his voice．
| A．Among , better | B．Among , best |
| C．Between , best | D．Between , better |