—Whydoyoulooksoworried?—Fredleftthecompanyhalfanhourago.Hiswork_______unfinishedsince. A: left B: wasleft C: hasleft D: hasbeenleft
—Whydoyoulooksoworried?—Fredleftthecompanyhalfanhourago.Hiswork_______unfinishedsince. A: left B: wasleft C: hasleft D: hasbeenleft
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