Present Perfect Simple vs Cont (Roadmap B1+) | Baamboozle - Baamboozle

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How long ______ they (research) alternative energy sources?

have they been researching

I ______ (work) at this company for over fifteen years.

have worked/have been working

The company ______ (expand) internationally for the past two decades.

has been expanding

______ you (call) your grandparents every weekend?

have you been calling

So far, all the company’s legal fees ______ (cover) by investors.

have been covered

I ______ (believe) in that theory since I first read about it.

have believed

I ______ (know) about this problem for quite some time.

have known

How long ______ they (renovate) the museum?

have they been renovating

Countries like Japan prone to ______ have developed advanced warning systems.

earthquakes

I ______ (practice) meditation every morning since last summer.

have been practicing

They ______ (improve) the city’s infrastructure for several years now.

have been improving

How many books ______ (read) this year?

have you read

The market ______ (grow) steadily since the beginning of the decade.

has been growing

They ______ (develop) new software solutions for several months now.

have been developing

I ______ (learn) how to play the piano for almost a year now.

have been learning

Scientists are studying how cancer ______ grow and spread in the body.

cells

I ______ (own) this car for more than a decade.

have owned

The team ______ (develop) this app for nearly three years.

has been developing

Coastal cities may be ______ by rising sea levels in the coming decades.

affected

I ______ (study) ancient civilizations for my thesis.

have been studying

I ______ (attend) cooking classes every Sunday for the past six months.

have been attending

______ you always (believe) that luck plays a big role in success?

have you always believed

I ______ (understand) the importance of mindfulness since my teenage years.

have understood

I ______ (teach) at this university for the last decade.

have been teaching

Many people choose to ______ in real estate as a long-term financial strategy.

invest

______ you (prepare) for your presentation all week?

have you been preparing

So far, all the funding for the project ______ (provide) by private investors.

has been provided

I ______ (believe) in astrology ever since I was a teenager.

have believed

I ______ (practice) yoga every morning for the last five years.

have been practicing

All of the company’s reports ______ (review) by external auditors.

have been reviewed

We need to act fast before we ______ out of fresh water in this region.

out of

The engineers ______ (work) on the bridge’s construction for five years.

have been working

Researchers are trying to determine what ______ climate change on a large scale.

causes

I ______ (work) on my novel for months, but it's still not finished.

have been working

Experts are working on models to ______ future weather patterns.

predict

They ______ (complete) over 40 case studies to support their hypothesis.

have completed

They ______ (conduct) over 30 experiments to verify the results, but nothing has been conclusive.

have conducted

Prices of essential goods continue to increase ______ in response to inflation.

dramatically

I ______ (publish) over 50 studies on the effects of climate change.

have published

Medical researchers are searching for a permanent ______ for diseases like diabetes.

cure

I ______ (jog) every morning since I moved to this neighborhood.

have been jogging

______ all the necessary equipment (deliver) on time?

has all the necessary equipment been delivered

I ______ (learn) Spanish for the past few months.

have been learning