明天有考试，我很紧张。
There is a test tomorrow, I am nervous.
别紧张！我会帮你。
Don't be nervous! I will help you.
你现在最想谁？
Whom do you miss the most now?
为什么她在哭？
Why is she crying?
她的妹妹看起来很难过。
Her younger sister looks upset.
你知道他们为什么生气吗？
Do you know why they are angry?
TIP
He cried sadly
In English, we might say You speak slowly or She quickly walked to describe how someone does something. In Chinese, 地 (de, ‑ly) can be used to describe an action.
Be sure to say 地 after the adjective but before the verb).
她高兴地笑了！ (Tā gāoxìng de xiào le!) She smiled happily!
他难过地哭了。 (Tā nánguò de kū le.) He cried sadly.
我的朋友生气地离开了。 (Wǒ de péngyǒu shēngqì de líkāi le.) My friend left angrily.