My task was to supply the correct tenses.
Correct me if I'm wrong, please. The "suspicious" in my opinion cases I wrote in bold
Jack Smith is being on holiday now. He stays at home for his holiday, but he does a lot of interesting things. A few minutes ago he met John Stanton who was on holiday too.
John: How are you enjoying your holiday, Jack?
Jack: I’m having a good time,John.
I stay at home. I have got a car and it is a pleasure to go to different places.
I'm not sure about words in bold. May be they must be in Continuous?
so, here continuous form should be used. Am I right?
Your final version would look like this:
Jack Smith is on holiday now. He is staying at home for his holiday, but he is doing a lot of interesting things. A few minutes ago he met John Stanton who is on holiday too.
John: How are you enjoying your holiday, Jack?
Jack: I’m having a good time,John. I'm staying at home. I've got a car and it's a pleasure to go to different places.
Thank you so much. You perfectly dispelled my uncertainty about this question. :)))))
You can also say:
It's been a pleasure going to different places.
Thank you :)))) I didn't even think of this to be a mistake :))))