A computer engineer usually _____ the system architecture before developing new software., analyzes, is analyzing, has analyzed, has been analyzing, The IT department _____ a new security protocol at the moment., has been implementing, implements, has implemented, is implementing, The company _____ three new data centers since January., builds, has built, has been building, is building, Our software developers _____ the performance of the application for several hours, and they still haven't found the problem., are testing, have tested, have been testing, test, The central processing unit (CPU) _____ instructions and performs calculations., is processing, processes, has processed, has been processing, Why _____ the network administrator _____ the server right now?, has / been restarting, has / restarted, is / restarting, does / restart, The startup _____ its first profitable quarter, so investors are optimistic., achieves, is achieving, has been achieving, has achieved, The financial analysts _____ the company's expenses since early morning, and they need a break., have been reviewing, have reviewed, review, are reviewing, Our company _____ cloud computing services to small businesses., has provided, provides, has been providing, is providing, The technicians _____ the damaged components, so the computer is working properly again., have replaced, are replacing, replace, have been replacing, At present, the engineering team _____ a prototype of a more energy-efficient processor., has developed, has been developed, is developing, develops, The company _____ its electricity consumption by 15% this year. The reduction is already measurable., reduces, has been reducing, is reducing, has reduced, The database _____ increasingly slowly lately, so the engineers are investigating the cause., has operated, has been operating, operates, is operating, How long _____ your company _____ with international technology suppliers?, has / been cooperating, does / cooperate, has / cooperated, is / cooperating, Every month, the finance department _____ a report on revenue and operating costs., has prepared, is preparing, prepares, has been preparing, Look! The stock price _____ rapidly after the company announced its new product., has risen, rises, has been risen, is rising, The engineers _____ the software update, so users can download the latest version now., install, are installing, have been installing, have installed, The research team _____ the relationship between automation and productivity for six months, and the study is still in progress., studies, has studied, has been studying, is studying, I _____ why the algorithm produces different results for identical inputs., am not understand, don't understand, haven't been understanding, am not understanding, Since the new accounting system was introduced, the company _____ fewer calculation errors., has made, is making, makes, has been making, The IT specialist's hands are covered in dust because he _____ the ventilation system in the server room., has been repairing, has repaired, is repaired, repairs, Our economists _____ the effects of inflation on household spending every year., have analyzed, have been analyzing, analyze, are analyzing, The developers _____ a critical vulnerability, and the security team is now checking the fix., discover, have discovered, are discovering, have been discovered, The market _____ unusually volatile recently, making investment decisions more difficult., has remained, is remaining, remains, has been remaining, The company _____ its operating costs for the last three quarters, and the process is still continuing., is reducing, reduces, has reduced, has been reducing

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