of the mountains in that area covered with trees and grass. A. Two-fifth; is B. Two-fifth; are C. Two-fifths; are D. Two-fifths; is 查看更多

 

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      of the mountains in that area        covered with trees and grass.
[     ]
A. Two fifth; is  
B. Two fifth; are  
C. Two fifths; are
D. Two fifths; is

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__________ of the mountains in that area _______ covered with trees and grass.

[  ]
A.

Two fifth; is

B.

Two fifth; are

C.

Two fifths; are

D.

Two fifths; is

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