问题
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21 . The program to control the entry of illegal drugs into the country was a failure in 1
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Since any answer was likely to cause embarrassment to his party, the politician tried to _
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The numbers of deer have fluctuated markedly since the entry of Europeans into Puget Sound
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_____, the boy couldn’t get into his dorm. A. Since the key lost B. The key ha
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Since his paper contains______ mistakes than ours, his will be entered in the contest.A.le
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The manager flew into () when he heard that his secretary had disobeyed his instructions.