簡單卻困擾我的英文問題.help me out,please

問題一、water 和 air 皆為不可數名詞,請問若 "air and water" 當主詞時,be 動詞要用 is 還是 are 呢?    Air and water is... ? Air and water are...? 列出二則例句參考。 a.Clean air and water are essential to the good health of a population. b.Clean air and water is not just possible in Kern County. 間題二、 ”you or... show more 問題一、water 和 air 皆為不可數名詞,請問若 "air and water" 當主詞時,be 動詞要用 is 還是 are 呢?
   Air and water is... ?
Air and water are...?
列出二則例句參考。
a.Clean air and water are essential to the good health of a population.
b.Clean air and water is not just possible in Kern County.

間題二、 ”you or he”當主詞時,後面動詞要用are 還是is?


間題三、 ”tea or milk” 當主詞時,後面動詞要用are 還是is?

thank you for thinking and perspective replies^^
Update: 感謝大家用心的回答。
容小弟再補充一個問題,煩請大家澄清小第的觀念。^^

我們說不可數名詞後面的動詞必須使用單數動詞
如:Air is indispensable to humankind.

問題:那如果是兩個"不可數名詞"當主詞時,該用單數動詞還是複數動詞呢?
如:Beauty and money is / are never being enough to everyone.
5 answers 5