I ____________ (to see) a ghost!
have seen
We ____________ (to be) to japan.
have been
I ____________ (to watch) a movie yesterday.
watched
She ____________ (to do) her homework
has done
I ____________ (to bake) a cake
have baked
He ____________ (to go) to the library a week ago.
went
She ____________ (to be) a nurse in 1965
was