is difficult to work on the Great Green Wall.      [     ]A. This   

            is difficult to work on the Great Green Wall.      [     ]A. This   

题型:同步题难度:来源:
            is difficult to work on the Great Green Wall.      [     ]
A. This      
B. It      
C. That      
D. Its
答案
B
举一反三
       is said that        tourists visit Geyuan Garden every day.          [     ]
A. That; thousands of                      
B. It; five thousand of            
C. It; thousands of                        
D. This; three thousand
题型:期中题难度:| 查看答案
Is _____ difficult to learn English well?[     ]
A. this
B. that
C. he
D. it
题型:同步题难度:| 查看答案
____ that he has passed all his school subjects.[     ]
A. It is though  
B. It is said    
C. That is known  
D. It is famous
题型:同步题难度:| 查看答案
Wearing red can make ______ easier for us to take action.    [     ]
A. that      
B. it        
C. this    
D. /
题型:江苏期末题难度:| 查看答案
I think         necessary to do some running in the morning.   [     ]
A. it        
B. that      
C. this        
D. one
题型:江苏期末题难度:| 查看答案
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