At school, I save energy by turning off the lights and fans when I leave the classroom. I also remind my friends to do the same. I use natural light instead of electric lights when possible. I do these things every day. They are important because they save electricity and help protect the environment.

1 .Students should use online resources for learning

2. Although she didn’t speak English well, she traveled alone to the UK.

1 . The students are doing a science experiment in the lab now.

2 . Space travel will become affordable for everyone in the future.

3 . You shouldn't stay up late to watch TV programmes.

A.hững vương quốc phong kiến ở Đông Nam Á từ thế kỉ VII đến thế kỉ X: Đại Cồ Việt, Champa, Pa-gan, Pe-gu, Tha-ton, Campuchia, DVva-ra-va-ti, Ha-ri-pun-giay-a, Sri Vi-giay-a, Bu-tu-an, Ka-lin-ga, Tu-ma-sic.

B

A.Đất được hình thành bởi các nhân tố: Đá mẹ, khí hậu, sinh vật, thời gian,địa hình

B.