This is an orange(改为复数句） Those are my friends.改为单数句 Are these your pictures?作肯定回答

This is an orange改为复数句 This is an orange.改为复数句. This is an orange改为复数句 This is an orange .[改为复数句] This is an orange pencilcase.用that改为否定句 This is an orange.（改为一般疑问句） This is an orange（改为复数句） lt is an orange(改为一般疑问句).---- ----an orange? This is a orange orange.This is an orange orangeThis is a orange orange.This is an orange orange.请问哪句正确? Ls this an orange ? Yes,is is . Are（ ） （ )? yes,( ) ( ) 改为复数形式 1.I'm fine,thank you.(改为同义句）2.连词成句：an,is,orange,orange,this It is an orange.(改为复数句) that is an orange.改为复数句 It is an orange改为否定句 lt is an orange 改为否定句 It is an orange eraser.改为复数 That is an orange .(改为否定句)That______an orange. This is an orange orange.的同义句