________ a good conductor, the metal is made into cables.

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________ again, and you will succeed.

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My daughter is upstairs, ________ her homework.

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________ a reply, he decided to write a letter to her again.

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Neither of them knows what ________ is doing now.

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　　I haven't heard from Henry for a long time.

　　What do you suppose ________ to him?

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How beautifully he sings! I have never heard ________.

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I am going to London ________ my parents are going with me as well.

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Four years later, Lincoln was elected President of the United States ________.

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________ a child, he was left an orphan and had to make a living by himself.

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