IfI_________theywereonsaleonline,Iwouldn'thaveboughtthetravelingbagsinthisstore.(2016-12) A: know B: knew C: hadknown D: haveknown
IfI_________theywereonsaleonline,Iwouldn'thaveboughtthetravelingbagsinthisstore.(2016-12) A: know B: knew C: hadknown D: haveknown
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