1.If you don't press the button, we can't start the engine.
2.If you don't work hard, you won't be successful.
3.You will be tired if you play games online too much.
4.If you aren't calm, you will make wrong decision.
5.If we put the garbage into the bin, it's one answer to minimize pollution.
6.If you work too much, you will feel tired.
7.If you don't keep silent, you will wake the baby up.
8.If you don't play sports, you won't be stronger.
9.If we take showers instead of baths, we can save much water.
10.If we stop destroying the environment, we will have clean air.
Chúc bạn học tốt!