15.My friend had a chance to make a trip to Hong Kong (61)onAugust 15.He had dreamed about (62)visiting(visit) it since his boyhood and it was the first time that he (63)had been(be) there.The following was (64)whathe had seen. Arriving there,he was impressed by its beautiful scenery and tall buildings.It is said that Hong Kong has the (65)most(many) skyscrapers in the world.Wherever he went,he saw many smiling faces there.People in Hong Kong were kind,generous,easygoing and ready to help(66)others(other).Much to his surprise,he saw that people there always kept order public places.Though crowds of people were waiting for the next train at the subway station,they were talking in such (67)alow voice as not(68)to disturb(disturb) others. Chinese and English are their official languages.English(69)is used(use) in governments,markets,service centers at other fields. Staying there for only a week was a good experience for him,(70)whichhe will never forget.