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( ) 21. It is ________ world of wonders, ________ world where we can find anything changed.
A. the, a B. /, / C. a, a D. a, the
( ) 22. ---David said he could fix my computer, but I really doubt it.
( ) 21. It is ________ world of wonders, ________ world where we can find anything changed.
A. the, a B. /, / C. a, a D. a, the
( ) 22. ---David said he could fix my computer, but I really doubt it.

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