4. Complete the sentences with the correct verb forms from 1.
(Hoàn thành các câu với các dạng động từ chính xác từ 1)
1. _________ for energy, fossil fuels release large amounts of carbon dioxide into the atmosphere.
2. _________ too much of the sun’‘s heat, greenhouse gases stop it from escaping back into space.
3. As temperatures rise, polar ice caps melt faster, __________ more water to oceans.
Bài Làm:
1. Burnt for energy, fossil fuels release large amounts of carbon dioxide into the atmosphere.
2. Trapping too much of the sun’s heat, greenhouse gases stop it from escaping back into space.
3. As temperatures rise, polar ice caps melt faster, adding more water to oceans.