We ________ have hurried all the way to the airport — the flight was called off because of the foggy weather.
| A．mustn't | B．couldn't |
| C．needn't | D．wouldn't |
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We ________ have hurried all the way to the airport — the flight was called off because of the foggy weather.
| A．mustn't | B．couldn't |
| C．needn't | D．wouldn't |
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