Thefactory_______we’llvisitnextweekisnotfarfromhere.
C
which 是关系代词，在从句中作宾语 .其他几个答案都不能作宾语 .
Totrade____thepeopleofalleountries____thebasisofequalityandmutualbenefitisourestablishedpolicy.
Generallywecoverinsuranee__definite(明确的)instructionsfromourclients.()
Accordingtotheshipping_____itwillbeimpossibleforustoshipthegoodsinOctober.()