T:he manager reviewed the case and decided not to take any action" These actions are going one after another so that you shouldn use Past Perfect at all... Use Past Perfect only if one event took place earlier then another in the past, for example: The manager had already reviewed the case when they came... "The total amount of debt which ABC Limited owes to its creditors is over $1 million" Continious tenses should be used for the actions that occur in the very moment you tell about...
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