| 1. 难度：简单 | |||||
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_______ all these people have in common is ________ they have succeeded.
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| 2. 难度：简单 | |||||
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Mother ______ the baby gently on the bed and then bent down to pick up the toy _____ on the ground.
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| 3. 难度：简单 | |||||
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The question came up at the meeting _________ we had enough money for our research.
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| 4. 难度：简单 | |||||
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It was after he got what he had wanted very much _______ he realized it was not important.
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