25. The train leaves at 6:00 p.m., so I have to be at the station ____ 5:40 p.m. at the least.
| A．until | B．after | C．by | D．Around |
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25. The train leaves at 6:00 p.m., so I have to be at the station ____ 5:40 p.m. at the least.
| A．until | B．after | C．by | D．Around |
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