Present prefect continuous

I __________(study) for my exams all day.

• have been studying

• has been studying

• has been study

The scientists __________(counduct) experiments in the lab.

• have been conduct

• have been conducting

• has been conducting

He _________ (read) books on self-improvement.

• has been reading

• have been reading

• had been reading

The company _______ (invest) in new technologies.

• have been investing

• invested

• has been investing

• is inventing

We (a)   (wait) for the rain to stop before going out.

The team _________ (win) many games lately.

• have been winning

• has been winning

• has been win

The chefs ___________ (prepare) the food for the event.

• 've been preparing

• has been preparing

• have been preparing

We ____________ (support) local businesses during the pandemic.

• have been supporting

• supported

• has been supporting

She ___________(knite) a sweater for her friend.

• have been knitting

• has been knitting

• knitted

Mary ____________(feel) sick for the past few days.

• hasn't been feeling

• is not feeling

• have not been feeling