On the 40th Earth Day, Dr Wang gave us a talk on the importance of        the earth.

A. practicing               B. preventing               C. polluting                 D. protecting

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科目：初中英語 來源： 題型：單選題

On the 40th Earth Day, Dr Wang gave us a talk on the importance of ______ the earth


  1. A.
    practicing
  2. B.
    preventing
  3. C.
    polluting
  4. D.
    protecting

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科目：初中英語 來源：江蘇期末題 題型：單選題

On the 40th Earth Day, Dr Wang gave us a talk on the importance of ______ the earth.

[     ]

A. practicing
B. preventing
C. polluting
D. protecting

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科目：初中英語 來源： 題型：

On the 40th Earth Day, Dr Wang gave us a talk on the importance of ______ the earth.
A．practicingB．preventingC．pollutingD．protecting

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科目：初中英語 來源：2010—2011學年江蘇省南通市海門中學初一上學期期末考試英語卷 題型：單選題

On the 40th Earth Day, Dr Wang gave us a talk on the importance of ______ the earth.

A．practicingB．preventingC．pollutingD．protecting

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