Simple past & present perfect in english

What is the difference between Simple Past and Present Perfect ?THE TOPIC:

Here are the two tenses:SIMPLE PAST-used for actions which happened in the past, at a certain momentex. I was in Spain last summer.exitPRESENT PERFECT-used for actions which happened in the recent past,with no reference to the exact momentex.: I have recently been to Spain.

Here are the two tenses:SIMPLE PAST-used when talking about the actions of someone who died, although we dont have the exact moment related to the workEx. Adam and Eve bit the apple.exitPRESENT PERFECT-used when talking about the actions of someone who is still alive and we dont have the exact moment in timeEx. Paulo Coelho has been to Romania.

Choose the right answer:

1.William Shakespeare. A lot of plays.Wrote has written have written

2. Adrian paunescu .. Many poems.Wrote has written have written

3. I. There yesterday.Was has been have been

4. I to London before.Was has been have been

WELL DONE!CONGRATULATIONS!!!

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