☆ on の 用法

on a bus, on a train, on a plane
on foot　      （歩いて）
on the cover of (〜の表紙に）
on a trip
on sale        （特価売り出し）
on the market
on schedule
on the guitar (piano, etc)
on time         (時間通りに）
on television/on radio
on the phone
on a farm
on a map
on the other hand
on purpose      (わざと）
on May 23
on Saturday
on the earth/ on the planet/ on the globe
on the coast (on the East Coast)
on street (on Wall Street)
on the floor ( on the 9th floor)