题目内容
A: When do you usually have dinner?
B: ____6:30____the evening.
| A．At; in | B．In; at |
| C．In; in | D．On; on |
A
解析试题分析：在表示时间时，at表示在时间的一点；on 表示在具体某一天； in表示在一个时间范围，或者接一段时间，表示多久之后。结合语境可知前一空表示具体时刻，后一空表示在某个时间范围，故选A。
考点：考查介词辨析
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