They are singing in the classroom怎样改成否定句、一般疑问句、肯定回答、否定回答、对ar

They are singing in the classroom怎样改成否定句、一般疑问句、肯定回答、否定回答、对ar The gir is singing in the classroom.（改为否定句）（改为一般疑问句,并做肯定回答） The orange is sour改成否定句,一般疑问句,肯定回答,否定回答,对sour提问 the students are cleaning the classroom.（改成一般疑问句并做肯定和否定回答） They are from the UK 改为一般疑问句,否定句,肯定回答和否定回答 they played football in the playground 的否定句 一般疑问句 肯定回答 否定回答 We are in the classroom变一般疑问句 并作肯定和否定回答 They are tall boys的否定句一般疑问句和肯定回答和否定回答 they are english dictionaries否定句,一般疑问句,肯定回答,否定回答, 改变句子I like the sweet peaches.改成否定句、一般疑问句、肯定回答、否定回答 英语题;they are singing in the classroom改为否定句,对in the classroom The girl is singing a song.改为否定句,改为一般疑问句,肯定句回答,否定句回答