Are they in grade seven做肯定回答和否定回答

Are they in grade seven做肯定回答和否定回答 Are they in Grade Seven?(做肯定回答和否定回答） are they in grade seven?做否定回答 They are in Class four ,Grade Seven改为否定句,一般疑问句,并做否定回答 We are in Class Eleven ,Grade Seven 改为否定句,一般疑问句,肯定回答,否定回答,划线 Are you in Class One .Grade Seven?(作否定回答) I an in class Frive,Grade Seven.改为一般疑问句,并作肯定回答和否定回答 Are they red?的肯定回答和否定回答 Are they good friends?的肯定回答和否定回答 They are teachers.肯定回答和否定回答 把下面的句子改为一般疑问句 并作肯定或否定回答 I an in Class FIve,GRade Seven They They are from England　改为否定句 Are you in Class Nine,Joe 做肯定回答