1. Do you have a room available?
   你們有空房間嗎？
2. Do you speak English?
   你會(huì)說(shuō)英語(yǔ)嗎？
3. How late are you open?
   你們營(yíng)業(yè)到幾點(diǎn)？
4. You must all listen carefully.
   你們都必須仔細(xì)聽(tīng)著。

you

pron.（代詞）
Used to refer to the one or ones being addressed:
你，你們：用于指代被稱呼的人或人們：
例句：
I`ll lend you the book. You shouldn`t work so hard. Does she telephone you from San FranciscoôSee Regional Note at you-all
我會(huì)把書(shū)借給你。你不要工作得這么辛苦。她從舊金山給你們打電話了嗎ô參見(jiàn) you-all

Used to refer to an indefinitely specified person; one:
（泛指）一個(gè)人：用于指代不確定的人；某人：
例句：
You can`t win them all.
你無(wú)法打敗他們所有的人

來(lái)源：
Middle English
中古英語(yǔ)
from Old English ôow [dative and accusative of] gô [ye, you] * see yu-
源自 古英語(yǔ) ôow [] gô的與格和賓格 [你，你們] *參見(jiàn) yu-