they are cleaning the window mopping the floor or(?)将这些单词连句

they are cleaning the window mopping the floor or(?)将这些单词连句 They are cleaning the window 将They are cleaning the window.改为一般疑问句 windows are the they cleaning这几个单词连词成句怎么连? 1 They are (cleaning the window) 改否定句 一般疑问句 否定回答 括号提问 The girls of Class Four are mopping the floor in Mrs Lynn's The girl of Class Four are mopping the floor in Mrs Lynn‘sof They are cleaning the house. cleaning the floor.是什么意思 He is cleaning the floor.They are playing basketball on thep are,windows,they,cleaning,the怎样组成句 They students are cleaning the classroom 对cleaning the class