题目内容
As a new recruit, you must _____ when duty calls.
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Visitors to the mine must _______ with the rules.
In the past, due to low productivity, we had to _______ land from forest, grassland, and sea to increase grain output.
I couldn't make my mortgage repayments so the bank __________my house.
In the early days of the PRC, the industrial and agricultural foundations were weak, and the economy was on the__________ of collapse.
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