this kind of (vegetable or vegetables)Why?

books of this kind 是this kind of apple还是 this kind of apples? shirts of this kind 和 this kind of shirts This kind of machine____cutting paper. This is kind of life this kind of 的用法 This Kind Of Love 歌词 英语翻译This kind of baozi ---- ------ --------. This?animal is?ugly.A.a kind of;a kind of B.kind of;a kind of C.kind of;kind of D.kinds of;kind of They prefer this kind of fruit to that kind.They__this kind of fruit ___ ___that kind a kind of,this kind of,what kind of 它们是加单数还是复数 This kind of food__(be)healthy this kind of pet is too_________(hair) This kind of machine can p_______ music. what kind of talk is this This kind of pen is easy______(write) this kind of shoes is sold out This kind of pen is easy______(write)