题目内容
【题目】用适当的介词填空(at/in/on)。(20分)
(1)I often do exercises________the morning.
(2)The shop opens________8:00 am.
(3)My birthday is________October.
(4)My birthday is________October (2)nd.
(5)We have English class________Monday.
【答案】(1)in (2)at (3)in (4)on (5)on
【解析】
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