Ex3: Turn the following sentences into the active.
1. Sheep gives wool.
2. Did my mom prepare dinner?
3. Do children drink milk?
4. My mother didn't serve dinner.
5. A hen lays eggs.
6. That kind woman helps them.
7. Cows and buffaloes eat grass.
8. Mr. Brown teaches grammar.
9. Không rõ đề
10. People cut down many trees to make paper.
11. People consider English the most international language.
12. My grandfather planted this tree.
13. She read this book.
14. Nam repairs the table.
