To complete the dialogues using the Present Perfect or Past Simple, it's important to understand the context and the differences between these two tenses.
Present Perfect is used for:
- Actions that happened at an unspecified time in the past and are relevant to the present.
- Experiences up to the present moment.
- Actions that started in the past and continue to the present.
Past Simple is used for:
- Actions that happened at a specific time in the past.
- Completed actions with a clear time reference.
Now, let's complete the dialogue:
Steve: I never have been to Russia.
- Here, we use the Present Perfect "have been" because Steve is talking about his experience up to the present moment. He has never visited Russia at any time in his life so far.
Barbara: I lived in Moscow for a month last year.
- We use the Past Simple "lived" because Barbara is talking about a specific time in the past, which is "last year."
Steve: You ever have been to St. Petersburg?
- We use the Present Perfect "have been" in a question form to ask about Barbara's experience in her life up to now.
Barbara: No, but a friend of mine stayed there for a week two years ago. He enjoyed it very much.
- We use the Past Simple "stayed" and "enjoyed" because both actions happened at a specific time in the past, "two years ago."
So, the completed dialogue would look like this:
Steve: I never have been to Russia.
Barbara: I lived in Moscow for a month last year.
Steve: You ever have been to St. Petersburg?
Barbara: No, but a friend of mine stayed there for a week two years ago. He enjoyed it very much.