The boy was doing his homework ________ he heard the cry for help .

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Have you ________ milked a cow?

________ .

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I want to know ________ she really meant what she said .

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It's possible ________ he misunderstood ________ I said just now.

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Her grandfather ________ for ten years.

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The child ________ to bed until his father comes back from work every evening.

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The hospital has been open ________ .

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Haven't you finished your work ?

________ .

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It ________ him half an hour to do the work .

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What would you do ________ the broken window?

I'd like to ask my parents to pay for it ________ me.

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