To stay ahead of the curve, our firm ________________________ (invest) heavily in artificial intelligence over the past two years., has been investing (emphasizes continuous action over a period of time), We ________________________ (receive) over 500 customer survey responses so far this week, giving us clear insights into what needs improvement., have received (focuses on a specific count/result achieved "so far"), Marketing ________________________ (try) to rebrand our main product line for months, but they haven't agreed on a final design yet., has been trying (emphasizes an ongoing, unfinished process over "months"), The strategy team ________________________ (identify) three key areas where our competitors are currently vulnerable., has identified (focuses on a completed achievement/result), Businesses in this sector ________________________ (compete) aggressively for market share ever since new regulatory laws were introduced., have been competing (emphasizes an ongoing trend/state starting from a past point "ever since"), Look at the analytics—the new campaign ________________________ (generate) a 20% increase in leads since Monday!, has generated (focuses on the present result of a completed change)

Present perfect simple or continuous?

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