Đặt 5 câu tiếng Anh có sử dụng "in"
1. We play in the park.
2. She is in the infirmary.
3. He works in the factory.
4. The doll in the closet was stolen.
5. Watermelon in the refrigerator.

 5 câu có sử dụng "on"
1. The cat is on the table.
2. The clock on the wall.
3. The ball falls on the roof.
4. The pillow is placed on the bed.
5. I sat on him a row of tables.