✅ worked

ℹ️ The past simple ("worked") is used because Jane is talking about a specific, completed experience from last summer, a definite time in the past.

✅ I have just found

ℹ️ The present perfect ("have found") is used because paul is talking about a very recent experience with relevance to now (he has the job now).

✅ studied/did

ℹ️ The past simple ("studied") is used because Anne refers to a specific time (last week) when the action was completed. The past simple ("did") is also used for the presentation, which happened at a definite time (yesterday).

✅ I have met/went

ℹ️ The present perfect ("have met") is used because Jane is describing a recent experience that has current relevance (she still knows these friends). The past simple ("went") is used for the specific event last night, a completed action at a definite time.

✅ drank/had

ℹ️ The past simple ("drank") is used because Paul is talking about a specific event that happened last weekend. The past simple ("had") is also used for the discussions, which occurred at that definite time.

✅ I have just bought / has been

ℹ️ The present perfect ("have just bought") is used because Anne is referring to a very recent purchase. The present perfect ("has been") is used to describe the ongoing benefit of the laptop up to the present.

✅ saw

ℹ️ The past simple ("saw") is used because Jane is describing a specific encounter that happened yesterday, a completed action at a definite time.

✅ ate

ℹ️ The past simple ("ate") is used because paul is referring to a specific event (lunch) that happened at a definite time (last month).

✅ haven't had

ℹ️ The present perfect ("haven’t had") is used because Anne is talking about a lack of time from the past up to now, with current relevance.

✅ was / did

ℹ️ The past simple ("was" / "did") are used because Paul is referring to a specific past finished time.

✅ I've taken

ℹ️ The present perfect ("have taken") is used because Anne is describing a recent experience with no specific finished time.