Next winter, ________ you'll spend in Harbin, I'm sure, will be another exciting holiday.

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You can hardly imagine the difficulty I had ________ the children.

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Madame Curie (居里夫人) , for ________ life had been very hard, was successful later.

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It is said that we will move into the new school next term, it will be completely finished.

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________ we need more practice is quite clear.

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A few tall buildings ________ in our village.

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There were two small rooms in the house, ______ served as the kitchen.

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—Did you pass the mid-term exam?

—No, I'm afraid I'll have a hard time, ________ is often the case.

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The meeting was put off, ________ was exactly ________ we wanted.

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________ is known to everybody, the moon travels around the earth once a month.

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