1.he asked archimedes to find a way to prove it.

2.japanese are considered to be one of the healthiest people in the world.

3.they also remind the students of their responsibility.

4.frequent air travel and the internet have enabled many of us to make friends from other culutres.

5.james watt noticed steam pushing the lid of the kettle,and later created the steam engine.

몇개라도 가르쳐 주세요 오늘 시험쳐서 ㅜㅜ