________ the concert had begun did we realize what a splendid show it was going to be.
A、NosoonerB
暂无解析
Whenworkersareorganizedintradeunions,employersfindithardtolaythem________.
Iboughtthiseighteenthcenturywritingdeskataquite________price.
It'smore________tobuyaseasonticketifyoutraveleveryday.
Inthefuture,more______shouldbeplacedontheeducationoftheyoung.
Itisusefultoscience_______theearthasanobjectinspace.
