Dưới đây là các câu đã được sắp xếp theo thứ tự đúng:

1. **Mr. Simpson broke his arm yesterday, so he couldn't join the charity concert.**

2. **At the beginning of the school year, the volunteers gave new stationery gifts to poor students.**

3. **Many schools send shoeboxes to charity for children who live in poor countries.**

4. **The children asked their friends to volunteer at a craft fair and held a booth.**

5. **Hoa Phuong Do volunteers to make toys and sell key chains often.**