问题描述：
根据要求改写句子
1There are (nineteen) boys in this class.(对画线部分提问）
2Sue helps her mother wash up everyday 用what提问
3The girls of Class Four are mopping the floor in Mrs Lynn’s office用what 提问
4Mary never wears red clothes用who提问
1There are (nineteen) boys in this class.(对画线部分提问）
2Sue helps her mother wash up everyday 用what提问
3The girls of Class Four are mopping the floor in Mrs Lynn’s office用what 提问
4Mary never wears red clothes用who提问
问题解答：
我来补答展开全文阅读