on reaching the office,he got down to workcould you tell me the structure and the meaning of this sentence?

on reaching the shop,the salesman was closing the door.on reaching the __(on,in,at,for)the day offI'm not afraid of ___(speaking,saying,talking,telling)to people kiss offi want the meaning,thanks~ Reaching For The Reaching for the stars! Reaching for the star reaching for the Keep reaching for the star,and keep your feet on the ground中文是什么意思 ON reaching the beginning of the climb,这句话的翻译?、急,越快越好, （）______the school,he saw his parents _______for him at the school gateA.At reaching;waited B.On arriving;waitingC.At arriving;waited D.On reaching;waiting 3.32___at the Town Hall,the Queen was welcomed by the Mayora.on reachingb.at arrrivalc.on arrivald.at reaching keep offI'm keeping the sun off.off的词性? Reaching For The Stars 中文歌词 reaching out from the heart on reaching the office,he got down to workcould you tell me the structure and the meaning of this sentence? 求翻译啊 The climbers kept on in the hope of reaching the top with one last effort. _____ at the Town Hall,the Queen was welcomed by the MayorA.On reachingB.At arrivalC.On arrivalD.At reaching选哪个?为什么? ___at the Town Hall,the Queen was welcomed by the Mayor.A.On reachingB.At arrivalC.On arrivalD.At reaching选什么,理由?