From time to time, some parents asked themselves the question ______ what they had done for their kids was worth doing.
| A．whether | B．where |
| C．that | D．when |
It is reported that the ____________ winds last night buried the whole village in sand.
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It is a ___________in western societies that women get married in long white dresses.
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She dreams of ___________ the ocean some day, where she can enjoy all kinds of fish and underwater plants.
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— Did he realize the serious situation immediately?
— No. It was quite a long time ________ he really realized it.
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The company Ms King worked ten years ago has closed because of the financial crisis.
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