1. Classroom doesn't have 10 desks

2. Minh learns Math well

3. Where is her hometown ?

4. are 4 people in you family ?

5. Her sister is fatter than she ( dùng đổi từ vì slim: ốm, fat : mập )

hoặc em có thể làm : Her sister is less slimmer than she

6. What is your best-loved subject ? 

7. You study harder than me

8. It takes us 45 minutes to study a lesson

II.

Wearing unifroms is compulsory in many countries like Vietnam, Japanese ,.... because it is benefical, and convinient with students. When students wear the uniform, they are equal and at school, students won't have no respect of wealth and poverty. In addition, they can connect together easily with the same clothes. The uniform also bring the beautiful memories for students, and when all of us wear same clothes, we don't afraid of anything. It also bring inspirations for fashion designers to make the school topic. Finally, uniform make students comfortable and equal when they are at school. 
Chúc em học tốt !