4. I first started to play the guitar when I was 16 (since)
I have played the guitar since I was 16.
5. This is their first visit to the Great Pyramid of Giza.(never)
They have never visited to the Great Pyramid of Giza before.
6. She arrived a few minutes ago.( just)
She has just arrived for a few minutes.
7. He came to live here two years ago.
He has come to live here for two years.
8. I  started this letter a week ago. (writing )
 I started writting this letter a week ago. 
9. The snow started this morning and it is still snow. (Been)

The weather has been snow since this morning 
10.Tourist first started to visit libiza in the 60s. ( coming)
Tourist first started  coming to libiza in the 60s. 

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1 It's nearly 20 years since my father saw his brother-
> My father has never seen his brother for 20 years
2. When did you learn to drive?
>How long have you learnt to drive?
3 We began eating when it started to rain.
> We have eaten since it started to rain.
#TIB

4. I have played the guitar since I was 16

5. They have never visited to the Great Pyramid of Giza before

6. She has just arrived for a few minutes

7. He has come to live here for two years

8. I started writting this letter a week ago

9. The weather has been snow since this morning 

10. Tourist first started  coming to libiza in the 60s