If you press this button, the machine starts., If you heat water to 100°C, it boils., If it rains, the garden gets wet., If you heat ice, it melts., If you mix red and blue, you get purple., If you eat a lot of chocolate, you won't feel well., You will be late, if you don't leave now., If it rains tomorrow, I will stay at home., They will get a big prize, if they win., If she doesn't pay attention, she won't understand..

zero and first conditional

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?