1) If you mix yellow and green, you get blue.
2) If you leave butter in the sun, it melts.
3) If you stay in the sun too long, you get sunburnt.
4) If you practise a foreign language, you learn hard.
5) If you drink cold water, you have a sore throat.
6) If you offer a tour beforehand, you do not have problems.
7) If you smoke, you have lung disease.
8) If you work hand, you achieve success.
9) If you add milk to tea, you get English tea.
10) If you heat ice, it turns into water.