I have ________ missed a class this semester. (I have a perfect attendance)
never
We have ________ seen that new movie. (We saw it at an unspecified moment in the past, so we don't want to watch it again)
already
Has the manager arrived at the office ________? (We are waiting for her and want to know if she is here now)
yet
Have you ________ been to a famous concert? (A question about life experience)
ever
They have ________ eaten dinner, so they aren't hungry. (They finished eating recently)
just
We have ________ booked our tickets for the vacation. (The planning was done at an unspecified time in the past)
already
I can't go out; I haven't finished my report ________. (I am still working on it)
yet
My brother has ________ ridden a horse in his life. (A fact about his lack of experience)
never
He has ________ called you three times! (He is frustrated because he called very recently)
just
She has ________ finished her lunch. (She finished it a very short time ago)
just
They haven't started the project ________. (They are late and it's not started)
yet