The thin air can earily make people feel___
The thin air can earily make people feel___
The _____(thin)the air is,the sicker people may feel.
some people live in high mountains.the air up high is thin.{
all the people can make the mistake
it can send people 60 meters into the air quickly.
make the air blue
make the air clean
Make The Air
make the air cleam
Trees and piants can make the air ciean .和 They can keep the
1.The c------ in the desert can help people carry heavy thin
Some ads can be ________,so make sure that you need the thin