.Dựa vào từ gợi y viết hoàn chỉnh các câu sau.
1. How much / cost / mail / letter / USA?
2. Mai / I / pen pals. We / write / each other regularly.
3. I/ please / that / you / your family / well.
4. Last semester / my class / there be / total / 9 days’ / absence / due / sickness.
5. Hoa / be used / live / big city.
7. Yesterday / a fiend / mine / teach / how / use / new computer game.
8. Most chilren / prefer / cartoon / movies.
9. Chilren / must / take part / outdoor activities / their friends.
10. Lan / not come / school / yesterday / because / she / bad cold.