this kind of trees is/are rare?主语是kind 还是trees,谓语动词应该用单数复数?

this kind of trees is/are rare?主语是kind 还是trees,谓语动词应该用单数复数? the kind of insects 做主语谓语动词用单数还是复数? Apples of this kind 后面谓语动词用单数还是复数? what kind of后面的名词,用单数还是复数?谓语动词单数还是复数?举例 表示一类事物的主语后面谓语动词用单数还是复数?比如the kind of bike 主语是you谓语动词应该用单数还是复数? a kind of,this kind of,what kind of 它们是加单数还是复数 this kind of做主语谓语动词用什么啊 this kind of electronic devices 后动词是加单数,还是复数? This kind of book 是复数还是单数 This kind of cup 作主语是谓语动词用什么形式 this kind of fish 后面用单数还是复数 this kind of fish (come/comes)fr