题目内容
The train leaves___6:00 pm, so I have to be at the station___5:40 pm at the latest?
A. at; until B. for; after C. at; by D. before; around
C
解析:
具体时间即点时间前常用介词at, 表示“到……为止”用by。

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题目内容
The train leaves___6:00 pm, so I have to be at the station___5:40 pm at the latest?
A. at; until B. for; after C. at; by D. before; around
C
具体时间即点时间前常用介词at, 表示“到……为止”用by。