Exercise III: Fill in each blank with a suitable word from the box. high-speed harmful density slums eco-friendly flying renewable populated 11.Solar power is ______________ because it doesn't harm the environment. 12.It is predicted that ______________ will be a popular means of transport by 2050. 13.Journey times have been reduced considerably thanks to _____________ trains. 14.Manila is the most densely _______________ city in the world. 15.The United States' population _____________ is 13.5 people per square mile. 16.People living in _____________ lack basic services such as clean water and sanitation. 17.When fossil fuels are burned, they release carbon dioxide and other gases that are ____________ to the environment. 18.Will ____________ energy replace fossil fuels within 30 years?

Cảm ơn em đã ghi ra sẵn để anh khỏi chép lại nha :)

11. Solar power is eco-friendly because it doesn't harm the environment. (không gây hại tới môi trường)

12. It is predicted that flying will be a popular means of transport by 2050. (đường/phương tiện vận chuyển => đường bộ/thủy/không)

13. Journey times have been reduced considerably thanks to high-speed trains. (thời gian đi ngắn => tốc độ đi cao)

14. Manila is the most densely populated city in the world. (densely = dày đặc/nhiều => nói về dân số)

15. The United States' population density is 13.5 people per square mile. (13.5 people per square mile => mật độ dân số)

16. People living in slums lack basic services such as clean water and sanitation. (khu ổ chuột)

17. When fossil fuels are burned, they release carbon dioxide and other gases that are harmful to the environment. (Cacbon đioxit gây hại cho môi trường)

18. Will renewable energy replace fossil fuels within 30 years? (nói về năng lượng thì chỉ có renewable và eco-friendly là thích hợp nhất mà eco-friendly đã dùng rồi)