I think people will like travelling by bullet trains in the future because is has many advantages. Fristi travelling by bullet trains is very eco-friendly. It help reducing the huge amount of transport and traffic jams. Second, travelling bullet trains are much faster than driving a car. Finally, using bullet trains are safe. Tens of thousand of people die each year in automobile accidents, but trains are one of the safest forms of transportation we currently have

1. students should to use online resources for learning

2. she didn't speak English well, although she traveled alone to the UK

1. The students are doing science experiment the lab now

2. Space travel become to affordable everyone in the future

3. You shouldn't stay late watching TV programmes

a) Văn Lang-Âu Lạc, Chăm pa, Phù Nam, Chao Phray a, In-đô-nê-xi-a

a) Đất đc hình thành do tác động đồng thời của năm nhân tố:đá mẹ,khí hậu, địa hình và thời gian 

b) Nguyên nhân làm cho đất bị ô nhiễm: sử dụng thuốc trừ sâu,khai thác tài nguyên, chặt phá rừng,...đều làm cho đất mất chất dinh dưỡng,giảm độ phì.