Chủ đề:
Bài 7: Tính chất đường trung trực của một đoạn thẳngCâu hỏi:
Tìm X,Y,Z biết (x+2)/3=(y-3)/4=(z+5)/5
Topic 5.Our greener world
1. Have you ever take part in the greener Club?
2. What will you do if you are the president of the 3RS club still in our school.
3. What should you do to make our school cleaner.
4. What will you do if you have some used plastic bottles at home