----- Nội dung dịch tự động từ ảnh ----- Bài tập 7. Điền vào chỗ trống với các giới từ đúng.
1. My sister is ______________ the Red Cross. 2. We donate books ______________ an orphanage every year. 3. We can exchange dead batteries ______________ a plant. 4. Last month, we gave gifts ______________ old people. 5. My family grew vegetables ______________ a primary school last spring. 6. That policeman is very kind. He is taking care ______________ thousands of homeless dogs and cats. 7. I had a gap year, so I volunteered ______________ teach art ______________ children in my neighbourhood. 8. Nancy and her friends are picking ______________ rubbish ______________ the beach now. 9. They turn old plastic bottles ______________ hundreds of pretty vases and toys. 10. We spend a day cleaning ______________ dirty streets every week.