为什么是a ticket to.和the key to the bike 但又是a pohto of my family

为什么是a ticket to.和the key to the bike 但又是a pohto of my family a ticket to the concert,a key to my room为什么后面用to?类似的短语还有哪些? 英语翻译门的钥匙翻译为什么是 a key to the door 可不可以是a key of the door呢~ a ticket to the film ,a ticket for the film ,a ticket of the a ticket to,a ticket for 和 a ticket of a ticket ___ football game 这里用of,表从属关系.但是否可用to?就像the key to 到底是a ticket to the concert还是a ticket for the concert? Have you seen the key ___my bike A of B to Cfor Dwith 关于key的用法the key to 表示“……的关键”,那表示“……的钥匙”是用“a key of”还是“a key my sister often go to school_______是by a bike还是on the bike The members of the family _____a bike to ride A.each has B.r Each of the family ______ a bike to ride.A:have B:has C:get