_________theinvestigation,thecommitteepublishedthereportonthecauseoftheaccident.(2015-12) A: Completed B: Havingcompleted C: Completing D: Tohavecompleted
_________theinvestigation,thecommitteepublishedthereportonthecauseoftheaccident.(2015-12) A: Completed B: Havingcompleted C: Completing D: Tohavecompleted
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