1. There are some students. They(=some students) don't like to wear school uniforms.
2. He wears the tie. I gave it(=the tie) to him on his birthday.
3. I want to go to a high school. Its(=the high school's) uniform is pretty.
4. The woman looked good in her dress. I met her(=the woman) at the party.
5. These are shoes. They(=shoes) are popular among students.
参考にしてください。