I cannot______ puzzled, for I simply cannot understand how I..

I cannot______ puzzled, for I simply cannot understand how I could have made such a stupid mistake.A.help feelB.help but to feel C.but to feelD.help but feel

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Visitors to the National Museum can avoid long lines at the ..

Visitors to the National Museum can avoid long lines at the ticket booths by purchasing tickets ____.A.in advanceB.in detailC.out of orderD.with caution

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Tom earned some money____ babysitting for the couple living ..

Tom earned some money____ babysitting for the couple living next door.A.inB.atC.byD.of

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He focused his effort ____the house ___sale for fear that t..

He focused his effort ____the house ___sale for fear that the prices of them would go up suddenly.A.on; forB.on; inC.to; forD.to; in

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Hearing the fire alarm, she escaped____ from the office, lea..

Hearing the fire alarm, she escaped____ from the office, leaving everything behind, including those important documents. A.in publicB.in panicC.in reliefD.in particular

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