我在学校门口等你。

Wǒ zài xuéxiào ménkǒu děng nǐ.

I will wait for you at the school gate.

有人在门口找你。

Yǒu rén zài ménkǒu zhǎo nǐ.

Someone is at the door looking for you.

学校门口有很多车。

Xuéxiào ménkǒu yǒu hěn duō chē.

There are many cars at the school gate.