Chọn một đáp án đúng để hoàn thành mỗi câu sau. 1.These beautiful pictures_________ from recycled paper. A. make B. makes c. is made D. are made 2. People_________ dried sugar canes to produce paper. A. reuse B. is reusing c. are reused D. has reused 3. l’m very happy_________ a letter from my family. A. receive B. receiving c. to receive D. received 4. We are delighted________ you will join our group. A. then B. that c. which D. there 5. A decision__________ until the next meeting. A. does not make B. will not make C. are not made D. will not be made 6. The milkmen ___________ empty milk bottles. A. will collect B. will be collected C. are collected D. has collected 7. In the USA, million of old car tires are_________ away every year. A. cut B. pushed C. thrown D. flown 8. Compost is a wonderful natural_________ . It helps plants grow. A. sandal B. glassware C. metal D. fertilizer 9. Farmers have _________ their waste for thousands of years. A. rebuilt B. recycled C. remade D. redone 10. The representatives from ‘Triends of the Earth” show us how to_____________the environment. A. protect B. prevent C. reduce D. refill