You ___________ (not/eat) well recently.
haven't eaten
Biologists ___________ (find) new marine species.
have found
How long _______(she /paint) that picture?
has she been painting
The scientist ___________ (study) global warming since 2021.
has been studying
I'm not surprised he's tired. He __________ (swim) for 45 minutes.
has been swimming
I __________ (not/finish) my science project yet.
haven't finished
_______ he _______ (feel) ill recently?
has he been feeling
We ________ (watch) that film twice in the last week.
have watched
I ________(work) on my English project all day.
have been working
They _____(discover) the cause of the disaster.
have discovered
My eyes hurt because I ____________ (work) on the computer for hours.
have been working
Susan _____________ (never / believe) in ghosts and fairies.
has never believed
You __________ (watch) TV since six o'clock this morning!
have been watching