The signal is ________ a pair of wires to the receiving telephone.

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Steve is a man who is ________ his neighbours.

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I soon found the work I had been doing had already been done by someone else, ________ , I was wasting my time.

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_______follow the buffalo, the Indians often had to move their camps.

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He was ________ to be a college graduate but he knew nothing of history.

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________ we can pass the coming examination will mainly depend on ________ we learn and ________ learn it.

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You must attend the important meeting ________ you're busy with business.

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—How can I get along well with my maths?

—You must work hard at it, ________ you must spend more time on it.

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You can take a mobile phone with you ________ you go.

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Mother often ________ something that I may forget before I go to school.

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