1.The red flowers is Jim's.The green one is Kate's.2.There'r

1.The red flowers is Jim's.The green one is Kate's.2.There're only one boat on the river.
两道题里的on分别是（n.名词,v.动词,adj.形容词,prep.介词,num.数词,pron.代词）
两道题里的one分别是。