因为下雪,所以学校放假了。
yīnwèi xiàxuě , suǒyǐ xuéxiào fàngjià le 。
Because it snowed, the school closed.
因为他生病了,所以没来上班。
yīnwèi tā shēngbìng le , suǒyǐ méi lái shàngbān 。
He didn't come to work because he was ill.
因为我们是朋友,所以我相信你。
yīnwèi wǒmen shì péngyou , suǒyǐ wǒ xiāngxìn nǐ 。
Because we're friends, I trust you.