Fill in all the gaps, then press "Check" to check your answers.

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1. When I (arrive) at the party, the show already. (start)
2. Kim (have) two big glasses of wine when I (meet) her last night.
3. The keynote speaker (deliver) the speech already when
    Pim (enter) the room.
4. The models (put their make-up on) when
    Noi (come) backstage.
5. The bus (leave) when Tom (call) the driver.
6. Beatrix Potter (live) in London before she (move) to
    Sawrey in the Lake District.
7. Karuna (work) as a teacher before she (become) a famous poet.
8. Estee Lauder (travel) the entire US and had talked to many managers
    before she (manage) to put her products in their stores.