Which of the following signs means something can be recycled？（ ）
| A． |
|
B． |
|
C． |
|
_________beautiful city!
Yes． Tourists from all over the world come to visit it every year．（ ）
A．HowB．WhatC．What a
Must we clean the classroom at once？
No， you ________． You may clean it after school．（ ）
A．mustn'tB．needn'tC．can't
When are we going to see the movie Zoo Topia， this afternoon or tonight？
________ is OK． I'm free today．（ ）
A．EitherB．BothC．Neither
We all know that ________ birds fly to Dongting Lake in winter．（ ）
A．millionB．millions
C．millions of
I read ________ unusual story last night． ________ story is about Dr． Zhong Nanshan．（ ）
A．an；AB．a；TheC．an；The
