This is a pear.A.yellow big B.big or yellow.C.yellow and big D.big and yellow应该选哪个,为什么

This is a pear.改为复数句 This is a apple.That's a pear.改错. This is a yellow pear.对a yellow pear 划线部分提问 These are an apple and a pear.还是This is an apple and a pear. this is a pear改为复数（要有some） What is this ____ ____?It's a pear. 你想把梨分给你的朋友吃,可以用英语说：A.Is this a pear?B.A pear,please?C.A pear? （）1.This is () pear and that is () apple.A.a,an B.a,a C.an,a this is a pear tree.改为复数把这句话改为复数形式 What colour ( -It's yellow.A.is pear.Bis a pear.C.pear is .D.it is,为什么? 用be的正确形式填空this什么a pear This pear is colour that one.A.same；from B.the same；as C.different；as D.the different；as 单数句变为复数句That's his friend.Is this her teacher.She has got a pear.Is he at home.This is my watch. What is difference between a pear and a pearl is it a pear or an apple?（用pear回答） GROW A PEAR 是什么意思 It is a pear.(改为复数句子） You can see that is a pear.改成否定疑问句