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题目
题型:同步题难度:来源:
Thousands of trees must _______ every year.   [     ]
A. plant    
B. be planted  
C. have been planted  
D. have planted
答案
B
核心考点
试题【Thousands of trees must _______ every year.   [     ]A. plant    B. be planted  】;主要考察你对动词的被动语态等知识点的理解。[详细]
举一反三
I won"t come to the party unless you ______, too.  [     ]
A. will invite  
B. invites  
C. invited      
D. are invited
题型:同步题难度:| 查看答案
In those days, books _____ one at a time by hand.    [     ]
A. should be produced  
B. should be produce
C. could be produced  
D. could produce
题型:同步题难度:| 查看答案
将下列主动语态变成被动语态。
1. We must finish the work in two days.
    The work must _____ in two days.
2. Mrs. Green has given Robert a present for Christmas.
    Robert _____ a present for Christmas.
3. We have used paper and printing for ages.
    Paper and printing _____ for ages.
4. He doesn"t think computers can replace books.
    He doesn"t think books _____ by computers.
5. We have bought some gifts for the poor children.
    Some gifts _____ for the poor children.
题型:同步题难度:| 查看答案
同义句转换.1.It is not possible to clean up the river in two days.
  _______ _______ to clean up the river in two days.
2.It is full of hope for the team to win the match.
  It _______ _______ for the team to win the match.
3.You know these papers can be used again.
  You know these papers can _______ _______.
4.We all hope that the project will be a success.
   We all hope that the project will _______ _______.
5.Drinking polluted water is not healthy.
   Drinking polluted water _______ _______.
题型:同步题难度:| 查看答案
Thousands of trees should ________ on the mountain.   [     ]
A. be planted  
B. plant        
C. planting      
D. planted
题型:同步题难度:| 查看答案
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