b. Now, read and fill in the blanks. (Bây giờ, hãy đọc và điền vào chỗ trống.)
1. If you change your ______________, you can help save the environment.
2. It takes ______________ liters of water to produce one kilogram of beef.
3. There would be more space for nature if people grew ______________ and didn't eat as much meat.
4. You may enjoy foods like carrots and broccoli if you begin ______________.