In, At, On

I start work _____ the morning.

• in

• at

• on

She goes to the gym ____ the afternoon.

• on

• in

• at

My birthday is ____ May 7th.

• at

• in

• on

They go to the gym _____ Friday.

• in

• on

• at

The party is ____ 2024.

• in

• at

• on

She likes to travel ____ the summer.

• on

• at

• in

He starts work ____ 9 am.

• in

• at

• on