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【参考答案】

providing改为provide
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A．He can take another flight on the same day.B．He can take a flight on another day.C．He can get his ticket the next day.D．He can get a confirmation file next day.
A．He can take another flight on the same day.
B．He can take a flight on another day.
C．He can get his ticket the next day.
D．He can get a confirmation file next day.
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