It is unusual __________ staff so severely for minor mistakes., punish, to punish, to punishing, She was the first employee ___________ the harassment case., report, to report, reporting, The journalist found nothing _________ the CEO's involvement., to prove, to proving, proving, Auditors had difficulty __________ the misreported revenue., to trace, tracing, both a and b, The IT team tried _________ a system upgrade overnight., to do, and do, both a and b, The board wasted time _________ about the office dress code., argue, to argue, arguing, The CEO stopped _________ the contract line by line., to review, and reviewed, both a and b, The compliance officer spent hours __________ suspicious contracts., review, to reviewing, reviewing.

Task 3

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