is this a red pen改為複數句,並作肯定回答 is that an english book?改為複數句,並作否定回答

is this a red pen改為複數句,並作肯定回答 is that an english book?改為複數句,並作否定回答


Are these red pens?
Are those English books?No,they are not.



this apple is red改為複數句


these apples are red



head hair ear eye nose mouth arm hand leg foot的複數形式分別是什麼?


heads
hair不可數沒複數
ears
eyes
noses
mouths
arms
hands
legs
feet