12．I don't have many time．

11．John enjoy playing basketball．

10．We are read the books carefully．

9．The students had anarguement（argue） with their teachers about their uniforms．

8．The poorhomeless（home） children have no houses to live in．

7．I just want to do the work bymyself（my）．

6．车祸发生的时候我正在街上散步．（when引导时间状语从句）I was having/taking a walk on the street when the car accident happened．

5．Bob was admiredfor his courage to save the boy trapped on a small island surrounded by flood and awarded a prize．

4．The big table took up a lot of space．We decided to removeit so that our children could hold a party there．

3．World Power
Author（s）：Kaplan  13.95
 You'll never be at a loss for words again．Energize your vocabulary with must-know everyday words that are the essentials of a good vocabulary，eagaging
lessons to help you use words in text，hot words often found on tests，tips to help you figure out new words，roots，and more．
Grades：8 & up Ages：13& up
World Smart Junior
Author（s）：Russell Stauffer  17.95
Now this is the way to add new words to your vocabulary!World Smart Junior will make you laugh so much．You"ll be amazed that you"ve just learned more than 120 fascinating and very useful words!Parents，teachers，and friends will be surprised at your eloquence（口才）!
Grades：3-5 Ages：8-10
Grammar Smart Junior
Author（s）：Marcia Reynolds  16.85
Do you quake when your teacher says，"Now it's time for grammar？"Do you verbs agree with your subjects？
Fear no more!A big Hollwood producer and a famous movie star will help you learn all those masty（讨厌） elements of grammmar．You'll be amazed at how quickly you learn，and how much fun it can be．You'll be finally know your grammer backwards and forwardsand you'll never have to worry about it again．
Grades：7-9 Ages：12-14
Grammar Smart：An Audio Guide to Perfect Usage
 Author（s）：Julian Fleisher   12.68
The words you use a lot about you but the way you put them together says even more．Your grammar makes an immediate and lasting impression on your teachers，and even your friends．Som don't make the mistake of thinking that grammar is too complicated．We've created Grammar Smart to help you write and speak with clarity（清晰） and confidence．
Grades：6-8  Ages：11--13 

21．If a-ten-old boy wants himself to be admired because of his speech ability，he may buyB．
A．World Power
B．World Smart Junior
C．Grammar Smart Junior
D．Grammar Smart：An Audio Guide to Perfect Usage
22．By saying"You'll be finally know your grammar backwards and forwards"the writer"A"．
A．You will be clearly familiar with grammar
B．You will know the history of grammmar
C．You will know the make-up of grammmar
D．You will learn about the future of grammar
23．The four books are all aboutD．
A．fiction and mysteries            
B．Parenting and teaching
C．literature and arts                   
D．Language study．