Объяснение:
1. Let's meet at half past two on Monday.
2. See you in tomorrow evening on the beach.
3. Let's meet at the bowling alley.
4. See you in the morning at 12 in the cafe.
5 Let's meet in this evening in the youth hostel.
Удачи :)
at on
по логике тут ничего а во втором on
at
in at in
опять же ничего ну можно попробовать вставить at во втором in
