Complete the dialogue using the present continuous, the present perfect simple or the present perfect continuous

PAST, PRESENT PERFECT, PAST PERFECT (simple and continuous)

Complete the dialogue using the present continuous, the present perfect simple or the present perfect continuous

Mrs Webb: Have you worked as a tourist guide before?

James: Yes, I have been (guiding) groups since I was at university..

Mrs Webb: Have (you worked) for many agencies?

James: So far I (have only worked) for Grand Tours.

Mrs Webb: Are (you / still/ working) for Grand Tours?

James: Yes, I am.

Mrs Webb: Which countries have (you / visited)?

James: I have (travelled) all over the world.

Mrs Webb: Have (you / been) to South America?

James: Yes, I have (toured) both North and South America.