E tham khảo
(chỉ cần ghép vào là thành passage nhé)
1 In the 1970s,skateboarding suddenly became very popular.
2 At first,skateboarders moved slowly on flat,smooth areas.
3 Then they began to ride quickly. This is called 'freestyle' skateboarding.
4 Soon they were skateboarding skillfully up ramps and doing tricks in the air.
5 This is called 'ramp' skateboarding. Then they started skateboarding and doing tricks on the street.
6 This was 'street-style' skateboarding - a combination of freestyle and ramp.
7 For this, the skateboarders needed protective clothing such as knee and elbow pads and helmets. This allowed them to skateboard safely.
8 Today skateboarding is still a very popular sport,and there are lots of competitions.