Voice with 'make' + bare infinitive (made X apologize <-> X was made to apologize)

1. A.
   The principal was made to apologize to the children.
2. B.
   The principal had made the children apologize.
3. C.
   The principal made the children apologize for their behavior.
4. D.
   The principal was apologizing to the children for their behavior.

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1. A.
   The presenter made the audience believe the product was revolutionary.
2. B.
   The audience believed the product to be revolutionary.
3. C.
   The audience was forced to believe in the product.
4. D.
   The presenter convinced the audience of the product's use.

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1. A.
   The staff had been made to report discrepancies silently.
2. B.
   The staff were made to report discrepancies silently.
3. C.
   Discrepancies had been reported silently by the staff.
4. D.
   The staff had been made report discrepancies silently.

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