11、Sometimes it is very difficult for consumers to __________fake products fromgenuine ones．{Page}


12、When do the children__________for the Spring Festival?
A．break down
B．break out
C．break up
D．break off
13、By the time Jim gets home，his father________ for Australia．{Page}


14、In the first semester, I asked my teacher __________.

---

what courses should I take            
what courses I should take    
I should take what courses            
should I take what courses

---

A． what courses should I take            
B． what courses I should take    
C． I should take what courses            
D． should I take what courses
15、Their experiment __________, Tom and Mary set out to write the report on the results.
A．done        
B．to be done        
C．being done    
D．will be done
16、Would you please let me finish my words? Don't __________ in the middle of a sentence.
A． put me off   
B． cut me off        
C． keep me off   
D． get me off
17、 I will go back to my hometown as soon as I __ my examinations.
A． will finish
B． finish
C． has finished
D． would finish
18、 To travel from England to Scotland you __ a passport.
A． mustn't have
B． haven't got
C． don't need
D． needn't
19、 -- Where do you think ______ he ______ the computer? 　　--- Sorry．I have no idea．　　
A．has; bought  
B． 不填; bought  
C． did; buy  
D． 不填; buys
20、My sister is used to__________ with all the windows open．
A． sleep  
B． sleeping   
C． the sleeping    
D． have slept

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