1. How long have you learned how to carve egg shells?
2. A lot of money will be spent on heating by people in Britian next year.
3. It's very useful for us to read that book.
4. In spite of being old, Mr Brown runs a mile day.
5. You'd better not eat too much meat.
6. Lan has 2 elder sisters.
7. What is the chicken's weight?
8. Hai would rather play badminton than listen to music.
9. We were quite disappointed with the ending of the film.
10. The guide doesn't speak slowly enough for me to understand.