Thank you for your help.

Question

1. He enjoys jogging on Monday morning.
2. He will have a meeting on the morning of July 22.
3. He will have a meeting on the morning of July.
4. He will have a meeting in the morning of July.
5. He will have a meeting in the morning in July 22.
[From #1 to #2, there is no problem, right? What about the others? Do we have to use 'on' or 'in'?]

Answer 1

Yes, 1 and 2 are fine.
3, 4, and 5 are incorrect.