7. That's very kind of you to help me on this math problem
8. Our group is planning to help the community by encouraging members participate in a recycling program
9. We hope to earn some money for our school Y-Y
10.To be member of our organization,you can register today
11. My father is good at gardening
12.Tam had high marks in exams after working very hard at school

Câu 10 là from nhé quên k điền hihi