求一道英語題的正確答案（非常感謝）【求英語高手來作答】
I have cleaned the door twice.(對(duì)twice劃線提問）
答案說的是how often have you cleaned the door?
我覺得不對(duì)誒
how often問的是“多久一次”
而題目中是twice.
我覺得不應(yīng)該是how many times have you cleaned the door?
兩種絕對(duì)是不一樣的呀，我做過一道題就是其中一種，我寫另外一種錯(cuò)了。