Each of the following sentences contains one error. Underline and correct it.
1. We won't get airport in least than 30 minutes.
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2. Your grandfather and I are delighting that you passed your English exam.
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3. People use first-aid in order for ease the victim's pain and anxiety.
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4. We believe that she feels very badly about her mistake.
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5. The big present is wrapped in red papers is five dollars.
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