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1
3 Choose the correct prepositions.
The class is on/at/in the morning.
2 He usually studies on/at/in night.
3 It's on/at/in Wednesdays and Fridays.
4 The first class is on/at/ in 15th April.
5 It finishes on / at / in 12 o'clock.
6 I don't do homework on / at / in the weekend.
7 David goes to school on/at/ in the afternoon.
8 My birthday is on/at/in 2nd March.​