It was raining hard, ________ kept us indoors.

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He paid the boy $ 10 for washing ten windows, ________ had not been cleaned for at least a year.

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Robert is good at language, ________ we all know.

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Finally the thief handed everything ________ he had stolen to the police.

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A child ________ parents are dead is called an orphan.

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That's the way ________ he spoke to his father.

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The girl ________ they borrowed the novel ________ is my sister.

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I will never know what was on his mind at the time, nor will ________.

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Was it in 1969 ________ the American astronaut succeeded ________ landing on the moon?

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－Wasn't it Dr Wang who spoke to you just now?

－________.

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