The children __________since they saw the giant spider on the wall. (scream)
have been screaming
We________TV for the past few hours and I'm starting to get bored. (watch)
have been watching
My grandpa_________whenever he talks now. I think he is losing his hearing. (yell)
has been yelling
My mom is late to dinner because she __________in traffic for tha past hour. (sit)
has been sitting
Jill_________about going to the Olympics since she was a little girl. (dream)
has been dreaming
I_________for my food to arrive for an hour. I think the delivery person got lost. (wait)
have been waiting
The dog___________since this morning. (bark)
has been barking
My brother doesn't cook often. He __________dinner since this afternoon and it's already past 7 o'clock. (make)
has been making