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While people were talking to each other, he read/ was reading his book.

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Who was she dancing/ did she dance with at the party last night?

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Did you find/ Were you finding your keys yesterday?

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My sister was eating/ ate hamburgers every weekend last month.

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It rained/ was raining heavily last July.

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What were you doing/ did you do when I called?

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I didn’t visit/ weren’t visiting my friends last summer holiday.

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Alice saw/ was seeing the accident when she was catching the bus.