She is upset. Why? (Wait/ him/ 3 hours)
She's been waiting for him for 3 hours.
Our hands are very dirty. Why? (repair/ bike)
You have been repairing your bike.
Why are you dehydrated? (drink/ enough water/ lately)
I haven't been drinking enough water lately.
She's scared. Why? (follow/ 30 minutes)
The man has been following her for 30 minutes.
Why hasn't she been getting enough sleep this week? (study/ late at night)
She's been studying until late at night.
He can't sleep. Why? (have/ nightmares)
He's been having nightmares.
How long have you been waiting for the bus? (wait/ 40 minutes)
I've been waiting for the bus for forty minutes.
They are happy. Why? (play/ together)
They have been playing together.
Clara's clothes are covered in paint. Why? (paint/bedroom)
She's been painting her bedroom.
He's really thirsty. Why? (run a marathon)
He's been running a marathon.
My football boots are dirty. Why? (football/ 2 hours)
You've been playing football for 2 hours.
Why is he sleepy? (not get/ enough sleep/)
He hasn't been getting enough sleep.