I/ Put the words in the correct form. (Cho dạng đúng của từ trong ngoặc.) 1. Playing football is one of popular ________ at break time. (ACT) 2. ______ students really like painting. (CREATE) 3. I think Laura has never worried about her ________. (APPEAR) 4. More and more tropical forests are ______ (APPEARE) 5. Greenhouse effect has bad ________ on the environment. (AFFECT) 6. Everyone should join hands to prevent the environment from ________. (POLLUTE) II/ Find and correct the mistake in these sentences. (Phát hiện và sửa lỗi sai trong các câu sau.) 1. If we stop deforestation, a lot of species will lose their habitats. 2. Pollution noise can cause stress and psychological problems. 3. When fossil fuels burn, they emit harmful gas into the environment. 4. Petroleum and natural gas form from remain of plants and animals. 5. The panels collect sunlight and convert into electricity. 6. Despite of the challenges, solar energy use is increasing worldwide. III/ Make complete sentences, using the words provided. (Dựa vào các từ đã cho, viết thành câu hoàn chỉnh.) 1. Energy / sun / be / know / as / solar energy. 2. cleanest / burning / fossil fuel / b e/ natural gas. 3. Water / be / renewable / because / it / can / replace / constantly. 4. Which / energy source / your country / rely / most? 5. Our sun / be / most powerful / source / energy / Earth. 6. Everyone / want / save / energy / protect / environment.