My mother _____ busy  (  )
A.isB.areC.does
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Look, the bird _____ flying. (    )
A.isB.areC.was
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_____they singing in the party? (    )
A.DoesB.DoC.Are
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Party members celebrate the day when it ____ founded. ( )
A.isB.wasC.were
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The children ____making cakes. (    )
A.isB.areC.does
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People ____ writing in the classroom. (    )
A.isB.areC.was
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There ____ seven days in a week. ( )
A.areB.isC.be
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Here _____ a computer. ( )
A.isB.areC.\
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用所给单词的正确形式填空。
1. There are some ______ (apple).
2. The ducks _____ (be) wonderful.
3. Can you tell _____ (we) at once?
4. Look, that girl ____ (dance ) over there.
5. Susan often _______ (swim ) on Sundays.
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____ you taking photos?  ( )
A.IsB.AreC.Do
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