This npair of chopsticks is made of ivory,_____ ______?

This npair of chopsticks is made of ivory,_____ ______? In spite of this books of this kind This part of my By copy of this because of this 歌词 Number of this out of this as part of this the helm of this of this life This side of this line of inquiry on this side of This ( )of keys isn't this.补充 This ( )of keys isn't this.补充 是this kind of apple还是 this kind of apples? shirts of this kind 和 this kind of shirts