ls this an orange 这句子哪错了,正确的是什么哪?what's this in english 这里的what‘应该是什么哪?

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? This is an orange改为复数句 This is an orange.改为复数句. this is an orange改复数句 This is an orange改为复数句 This is an orange .[改为复数句] This is an orange orange.的同义句 Ls this an orange ? Yes,is is . Are（ ） （ )? yes,( ) ( ) 改为复数形式 ls this an orange 这句子哪错了,正确的是什么哪?what's this in english 这里的what‘应该是什么哪? it's an orange意思it's an orange 什么意思?what's this in english?is an orange【这句什么意思？】 This is an orange pencilcase.用that改为否定句 This is an orange（改为复数句） 1.I'm fine,thank you.(改为同义句）2.连词成句：an,is,orange,orange,this ls this a bus复数句 ls this your ruler改为复数句 ls this tall girl pretty?肯定句 ls this his coat?的同义句 连词成句 1 is ,this,one,white,a(,).这句意思是什么?2 here,an,one,orange,is(.) 这句意思是什