1. I first (meet)___________ Lan while we (work)___________ as volunteers., was meeting – worked, met – were working, met – worked, was meeting – were working, 2. While we (walk)________ home, we (see)____________ a girl crying near a bus stop., were walking – saw, walked – were seeing, were walking – were seeing, walked – saw, 3. Kim (notice)_____ the poverty of the area while she (deliver)______ free meals to old people., was noticing – delivered, noticed – delivered, was noticing – was delivering, noticed – was delivering, 4. When I (arrive)_________ at the community centre, a guest speaker (give)_________ a speech., was arriving – gave, arrived – gave, arrived – was giving, was arriving – was giving.

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