Dựa vào hình ảnh, bạn có thể điền vào chỗ trống như sau:

1. You can use a **calculator** to do calculations.
2. You can use a **pen** to write notes.
3. You can use a **backpack** to carry books, pens, etc. to school.
4. You can use an **eraser** to remove pencil marks from paper.
5. You can use a **pencil case** to carry pencils, pens, rulers, rubbers, etc.
6. You can use a **compass** to draw circles.
7. You can use a **ruler** to draw straight lines.