I. Điền vào mỗi chỗ trống một giới từ thích hợp
1. What........... playing table tennis?
2. He often goes to school........... foot
3. What's wrong............. you? - I have a headache
4. She is.............. vactation in Ha Long Bay
5. She needs a packet............ tea.
6. What would you like .................. breakfast?
7. Nga always helps her mother............... school
8. I'm very busy now. Can you go to the store............. me?
9. My house is not far............... my school
10. I live in a house.......... the country