The scholars __________ (research) ancient civilizations for years, unearthing remarkable discoveries.
have been researching
As a wildlife photographer, he __________ (capture) stunning images of rare species during his trip.
has been capturing
With dedication and discipline, she __________ (learn) multiple languages fluently.
has learnt
By the time we reached the summit, the climbers __________ (scale) the mountain for several hours.
had been scaling
Despite the challenges they faced, the team __________ (design) innovative solutions for the project.
has designed
In the pursuit of knowledge, he __________ (read) countless books on philosophy since March.
has read
While traveling the world, they __________ (immerse) themselves in various cultures.
have been immersing
After several attempts, they __________ (solve) the complex puzzle.
have solved
Over the past decade, the technology industry __________ (evolve) rapidly.
has evolved
The price of petrol _____ (rise) by 15% over the past year.
has risen
The research team __________ (investigate) the effects of climate change extensively.
has been investigating
Despite the rain, the gardener __________ (work) tirelessly in the garden.
has been working
After finishing his degree, he __________ (study) advanced mathematics for three years.
has been studying
