I need thirty minutes to clean the room.（对thirty minutes提问）

I need thirty minutes to clean the room.（对thirty minutes提问） They need thirty minutes to clean their classroom.(对划线部分提问) 如何提问for thirty minutes The plane land for thirty minutes.for thirty minutes划线提问用how thirty minutes是什么意思? I waited there for thirty minutes; that . I walked thirty minutes after supper I think thirty minutes enough for us The shoes are thirty yuan 对（thirty yuan 提问） need I thirty of exercise minutes day a连词成句 She need 20 minutes to clean the table 为什么要在minutes和clean之间加 for thirty minutes 和 thirty minutes的区别