________ with the size of the whole earth, the highest mountains do not seem high at all.
C
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When I came through the customs at the airport, I had to pay ________ on a clock I had bought.
ShegotajobasanassistantstagemanagerattheCambridgeArtsFestivalTheatre,thinkingthatitmight________toacareerasaplaywright(剧作家).
________,Johnhasbeentoseveralforeigncountries.
Whenworkersareorganizedintradeunions,employersfindithardtolaythem________.