The symbols of mathematics ________ we are not familiar are the signs of addition, substraction, multiplication, division and equality.

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The first textbook, ________ for teaching English as a foreign language, came out in the 16th century.

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All my money ________ and I have nothing to buy food with.

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The fire ________ under control, but not before extensive damage had been caused.

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Some animals, in order to keep themselves ________ by the enemies, go out for food at night.

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With no one to talk to, he had to ________.

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John overslept this morning ________ he was late for school again.

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-- Can you solve the problem by yourself?

-- I think I can ________ it.

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________, he is correct ________.

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It seems that the young man and the lady have little ________.

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