【Cherry Chen】評論
題目: _____ did it cost Mom _____ some food in the market?判斷第一隔空格可以看後面的cost(花費)所以選擇How much (詢問花費）而非How long(詢問多久或多長）第二格可以將問題轉換成回答來看題目問媽媽花了少錢買食物在超市裡？回答可能是：It cost Mom $200 to buy some food in the market. 花費200元(為了)買些食物由於前面已經有cost當動詞，所以後面接to + 原形Ｖ所以這題問題完整應該是How much did it cost Mom to buy some food in the market?