Li Ming will take part in the boys' _______.
[     ]
A.800-meter race
B.800-meter races
C.800 meter race
D.800-meter-races
There were ______ animals in the forest many years ago.
[     ]
A. thousand of
B. thousands of
C. three thousand of
D. three thousands of
—Can you say the number 4868 in English?
—Sure!It’s______.
[     ]
A. four thousand and eight hundred and sixty-eight
B. four thousand eight hundred and sixty eight
C. four thousand eight hundred and sixty-eight
D. four thousand and eight hundred sixty-eight
There are ______days in a week.    
[     ]

A. the seven        
B. seven    
C. seventh          
D. the seventh

There are ______ workers in this factory.         
[     ]
A. four hundreds                
B. hundreds of          
C. four hundreds of              
D. hundred of
—Have you seen the CCTV news on TV?        
—Yes, _______ children had a good festival on Children's Day.       
[     ]
A. million of                    
B. millions of        
C. ten million of                
D. ten millions
Every year _______ of trees are planted on the hills to protect      the environment.
[     ]
A. a thousand      
B. thousands          
C. thousand
There are more than 200 _____ stars in our galaxy.  
[     ]
A. billions
B. billions of
C. billion
They told us that there are _   ___ sheep in their country.
[     ]
A. million of    
B.  million    
C.  millions of
           parents are worried about their children watching some blue movies through
the mobile phone.              
[     ]
A. Thousands          
B. Millions            
C. Millions of
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