Rewrite the following sentences using questions words + to-infinitive.
1. Could you tell me when I should explain everything to our teacher?
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2. I don’t know what I should do to make my mother happy.
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3. She wondered how she could tell her mother about the stolen bicycle.
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4. We are not sure what we should do to make our house more beautiful at Christmas.
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5. My mother can’t decide where we should go at summer holidays.
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