How many/ room/ there/ your/ house/,/ Mary?1/15How many/ room/ there/ your/ house/,/ Mary?How many are there rooms in your house, Mary?How many rooms are there in your house, Mary?How many rooms there are in your house, Mary?How many room is there in your house, Mary?Giải thíchĐáp án đúng:B Dịch: Nhà bạn có bao nhiêu phòng vậy Mary?