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I __________ (watch) this show for hours. My brain is melting.
have been watching / have watched
She __________ (cook) dinner when I got home.
was cooking
They __________ (play) football in the park right now.
are playing
He __________ (try) to fix his bike all morning.
was trying
I __________ (sleep) when you called me last night.
was sleeping
Her mother _____ (live) with her at the moment.
is living
Governments worldwide __________ (implement) various policies to combat climate change.
have implemented / have been implementing
In recent years, the cost of higher education __________ (increase) significantly.
has increased / has been increasing
Many experts __________ (argue) that technology enhances productivity.
argue
The organization __________ (launch) its first sustainability report in 2010.
launched
Public awareness about mental health issues __________ (grow) steadily over the past decade.
has grown
Some individuals __________ (believe) that success is solely determined by hard work.
believe
Researchers __________ (conduct) a comprehensive study on urban pollution last year.
conducted
Many urban residents __________ (experience) increased stress due to overcrowding.
have been experiencing / have experienced
Over the past few decades, global travel __________ (become) more accessible to the average person.
has become
While the students __________ (write) their essays, the teacher monitored their progress.
were writing
