Or in questions with 还是

Structure A + 还是 + B？

To ask "A or B?" (choosing between two) you use 还是 (háishi): 你喝茶还是咖啡？ It’s the "or" used ONLY in choice questions. In statements, "or" is 或者 (another point). Don’t add 吗 to these questions: 还是 already marks them.

Examples

你nǐ喝hē茶chá还hái是shi咖kā啡fēi？
Do you want tea or coffee?
你nǐ去qù还hái是shi不bù去qù？
Are you going or not?
今jīn天tiān走zǒu还hái是shi明míng天tiān走zǒu？
Do we leave today or tomorrow?

Levels are indicative: they follow the standard Chinese Grammar Wiki (AllSet Learning) progression, not an official HSK 3.0 mapping. We never assign levels by eye.

This point and the other 370, with audio on every example, inside Wanyu.