We are planning to host a cocktail party this weekend.

What do you do on the weekend?

Tonight, we are hosting a party at a friend's house.

We are planning to have a party at a friend's house tonight.

He is good at making cocktails.

Tomorrow's party is already planned.

What is your schedule for tomorrow?

The door opens.

When he opened the window, fresh air flowed into the room.

When he opened the window, fresh air flowed into the room.