Question: Which of the following sentences uses the correct preposition?

Options:

1. She is good in math.
2. He is interested on history.
3. They walked through the park.
4. I will meet you at 5 PM in the cafe.

Correct Answer: I will meet you at 5 PM in the cafe.

Solution:

The correct preposition is \'at\' for specific times and \'in\' for locations.