Giúp em vs ạn.
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1. With the development of science and technology, many (31) natural resources, such as coal and oil, are used every day.
2. Nowadays, many (32) students leave their classrooms.
3. It is needed (33) to save electricity at home if we use a lot of light (34) bulbs.
4. Electric lights (35) should be turned off when you leave.
5. Moreover, we may waste electricity (36) if we do not pay attention to energy (37) wasting.
6. For example, they should turn (38) off electric lights when they go home, and (39) save energy.
7. Many people still believe that (40) energy resources will never run out.
2. Nowadays, many (32) students leave their classrooms.
3. It is needed (33) to save electricity at home if we use a lot of light (34) bulbs.
4. Electric lights (35) should be turned off when you leave.
5. Moreover, we may waste electricity (36) if we do not pay attention to energy (37) wasting.
6. For example, they should turn (38) off electric lights when they go home, and (39) save energy.
7. Many people still believe that (40) energy resources will never run out.
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