The boy ________ help when his sister fell into the river.

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Those T-shirts are usually $ 35 each, but today they have a ________ price of $19 in the shopping center.

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This dictionary is ________ to my translation, but that one is ________.

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I don't think the colour of the wall ________ the curtain.

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Knock at the door ________ and perhaps you will get an answer.

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Knowing that there was little time left, they ________ immediately.

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-- She said she didn't take the money.

-- I ________ what she said because I ________ her.

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I ________ his offer, but I didn't ________ it.

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What shall we use for power when all the oil in the world has ________?

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The English dictionary is not cheap. It costs ________ 300 yuan.

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