seen, it can never be forgotten.——青夏教育精英家教网——

摘要： seen, it can never be forgotten.

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Once seen, it can never be forgotten．

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Once ___, it can never be forgotten.

A. see B.to be seen C. seen D. saw

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Once ___, it can never be forgotten.

A. see B.to be seen C. seen D. saw

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Once________，it can never be forgotten．

[　　]

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Once ____, it can never ____.

A. see; forgotten
B. see; forget
C. seen; be forgotten
D. seeing; be forgotten

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