hình đẹp lắm đó

bai toan nay kho qua

1000+1000=2000, mình nhanh nhất

tớ tik tớ nhé

Good Evening, everyone. I'm ... and today I'm going to tell you how to save energy

Most of us use too much energy. You can reduce this amount by :

- Switch off or unplug any chargers or appliances you don’t need on.

- Use energy saving lamp

- Switch to renewable energy sources
If you follow these simple rules, not only you will seve energy, but also reduce global warming