—The price has been rising these days.

—I agree. It's time to ________, or our life will be harder.

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It's time we ________ our plans for the holidays.

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Try your best and do it well, or others will ________.

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Is there anything you want from the town? I'm going to get ________.

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When I saw a pen lying on the ground, I stopped ________.

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It is quite impossible for ________ people to do ________ work in a day.

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Doctor Smith as well as his assistants ________ going to do an important experiment in the lab next week.

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Many towns and villages had their water supply ________ because there was no electricity.

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We don’t know why the shop keeps ________.

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The report was so ________ that they were all ________.

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