你为什么这么高兴？

Nǐ wèishénme zhème gāoxìng?

Why are you so happy?

你想吃什么水果？

Nǐ xiǎng chī shénme shuǐguǒ?

What fruit would you like to eat?

周末你打算做什么？

Zhōumò nǐ dǎsuàn zuò shénme?

What are you planning to do this weekend?