most of the earth’s surface is covered by water, fresh water is very rare and precious. A. As B. Once C. If D. Although 2007状语从句 查看更多

 

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___ most of the earth’s surface is covered by water, fresh water is very rare and precious.

A. As B. Once C. If D. Although

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___ most of the earth’s surface is covered by water, fresh water is very rare and precious.

A.As B.AlthoughC.If D.Once

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___ most of the earth’s surface is covered by water, fresh water is very rare and precious.

A.As               B.Although          C.If                D.Once

 

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___ most of the earth’s surface is covered by water, fresh water is very rare and precious.


  1. A.
    As
  2. B.
    Once
  3. C.
    If
  4. D.
    Although

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____ most of the earth's surface is covered by water, fresh water is very rare and precious.

[     ]

A. As
B. Once
C. If
D. Although

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