Complete these sentences with in, on or at:
1. Our annual conference is scheduled ___ December.
2. The board meeting is set for 10 a.m. ___ Monday.
3. The project deadline is approaching ___ the end of this month.
4. We have a training session planned ___ the first week of April.
5. The presentation will be delivered ___ the 15th of May.
6. The team brainstorming session is happening ___ 9 a.m. ___ Thursday.
7. The report is due ___ the end of the quarter.
8. We need to finalize the budget ___ the next few days.
9. Our company anniversary falls ___ the second week of July.
10. The seminar is scheduled ___ 3 p.m. ___ September 20th.