Use the words and phrases to write a passage
1.In / 1970s , skateboarding suddenly / become very popular
2.At first , skateboarders / move slowly / flat , smooth areas
3.Then they / begin / ride quickly . This / be called " freestyle " skateboarding
4.Soon they / be skateboarding skillfully up ramps / doing tricks in the air
5.This / be called " ramp " skateboarding . Then they / start skateborading / doing tricks / the street
6.This / be " street-style " skateboarding - a combination of freestyle / ramp
7.For this , the skateboarders / need protective clothing / as knee and elbow pads / helmets . This / allow them / skateboard safely
8.Today skateboarding is still / very popular sport , and there / are lots of competitions
Giúp em với ạ , em cần gấp