A
The Chinese ______ (invent) paper.
invented (simple past -- historical fact)
This is the third piece of cake that you ______ (eat) today.
have eaten (present perfect -- unfinished time word)
She ______ (die) four months ago.
died (simple past -- finished action, finished time period)
My notebook isn’t here anymore. Someone ______ (take) it.
has taken (present perfect -- finished action with a result in the present)
Dad, ______ (finish) reading the newspaper yet?
have you finished (present perfect -- yet)
I ______ (know) Julie for three years. We still meet once a month.
have known (present perfect -- event started in the past and continues to the present)
The girls ______ (not eat) their lunch yet.
haven't eaten (present perfect -- yet)
They ______ (clean) the car. It looks new again.
have cleaned (present perfect -- recent finished events)
I read this book when I was at school. I ______ (enjoy) it a lot.
enjoyed (past simple -- finished event)
How long ______ (be) a doctor?
have you been (present perfect -- how long)
At last, I ______ (complete) my project. Now I can take a break.
have completed (present perfect -- recent finished action)
We ______ (never visit) another country before.
have never visited (present perfect -- never, life experiences)
How many times ______ (listen) to this CD today?
have you listened (present perfect -- unfinished time word)
He ______ (not smoke) for two weeks. He is trying to give it up.
hasn't smoked (present perfect -- unfinished action that started in the past and continues to the present)
I would love to visit Rome sometime. Unfortunately, I ______ (be) there.
have never been (present perfect -- never, life experiences)
I ______ (meet) my friend two days ago.
met (simple past -- finished action, finished time word)
He can’t drive us today because he ______ (lose) his car keys.
has lost (present perfect -- finished action with a result in the present)
She ______ (buy) a new car in 2011.
bought (present perfect -- finished time word)
Shakespeare ______ (write) a lot of plays.
wrote (past simple -- finished action)
When Jack was at school, he ______ (learn) to play the saxophone.
learned (past simple -- finished event)
I'm sorry but I ______ (forget) my homework.
have forgotten (finished action with a result in the present)
I ______ (study) English for the past five years, but I still have difficulty speaking and writing.
have studied (present perfect -- unfinished action that started in the past and continues to the present)
Last year we ______ (go) to Italy.
went (past simple -- finished time word)
Jack ______ (live) in Boston for the past 15 years.
has lived (present perfect -- unfinished event that started in the past and continues to the present)
I'm afraid I'm not hungry. I ______ (already eat).
have already eaten (present perfect -- already, recent finished action)