Whenworkersareorganizedintradeunions,employersfindithardtolaythem________.
A、offEachyearintheUnitedStates,manyblackteenagers_______ofschool,eitherbecausetheycannotkeepuportheyhavetoworktosupporttheirfamily.
Forthenewcountrytosurvive,________foritspeopletoenjoyprosperity,neweconomicpolicieswillberequired.
Insomeschoolschildrenwhoprefertoreadbooksratherthan________footballbecomesocialoutcasts(被抛弃者).
Sorrysir,wedon'thavewineorbeer.Weareonlylicensedtosell_______drinks.
________withthesizeofthewholeearth,thehighestmountainsdonotseemhighatall.
