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.
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.
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