我在学校学外语。

Wǒ zài xuéxiào xué wàiyǔ.

I study foreign languages at school.

你喜欢学哪种外语？

Nǐ xǐhuān xué nǎ zhǒng wàiyǔ?

Which foreign language do you like to learn?

我想学一门外语。

Wǒ xiǎng xué yì mén wàiyǔ.

I want to learn a foreign language.