be in 和be on在表示'参加"时的区别

be in 和be on在表示'参加时的区别 get into表示“参加,加入”的用法?请详细说明并配有例句,还有 be/get involved in 、 be/get involved with 表示“参加,加入”时的用法和例句. be covered in 和 be covered on有什么不同? be born in 和 be born on 有什么区别 be deep in 和be hooked on 有什么区别? be set in和be set on 的区别? 英语be located in 和 be located on的区别? 主语+be/lie/be situated/be located+in/on/to+of+地点名词 其中in/on/to 分别表示什么 be situated on和in用什么区别?be located in 和 on的区别呢 be concerned in和be concerned with 有没有参加和与…有关的意思 be put on 和wear还有 be in,有什么区别?用wear和be in造句, be in agreement on和be in agreement with的区别 be born + ?be born in + 地点/?be born on + ? 用be in（参加）造句, an expert on和be expert in的区别 be keen on和revel in有什么区别 出生在某个地方用be born on 还是in? be based on 和.be based upon