it will take about half an hour to prepare your dishes （about half an hour）画线提问

How long will it take to prepare your dishes?追问：what time 可以吗 回答：提问的是时间的多少.你那是什么时间,是具体的.不可以的.追问：Tom is taller than any student in his class 这句那里错了 回答：比任何学生都高,就要用最高级.不能用比较级.追问：不是有比较级表最高级意义的吗?怎么改 回答：Tom is the tallest student in his class.