Though Tom knew nothing about business, he succeeded ________ other more well-informed managers failed.
| A．what | B．how | C．if | D．where |
___________ in thought, he almost ran into the car in front of him
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The young dancers looked so charming in their beautiful clothes that we took __________ pictures of them.
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---What are the police doing?
---They are _________the mountain ___________ the escaped prisoner.
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_________ to the efforts by the headmaster, I can go back to school now.
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Americans eat __________ vegetables per person today as they did in the 1980s.
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