他明天干什么用英语怎么说

"What is he doing tomorrow?" can be translated into "他明天干什么" in Chinese.
This phrase is a common question asked to inquire about someone's plans for the future, and it's derived from the English language.
Example:
A: What is he doing tomorrow?
B: He is going to the beach.
A: 他明天干什么？
B: 他要去海滩。
A: What's your friend doing tomorrow?
B: He is having a picnic with his family.
A: 你朋友明天干什么？
B: 他要和家人一起野餐。