Once damage______ it takes many years for the natural environment to recover.A．has doneB．

相关问题

• 1、Taking photographs is strictly______here as it may damage the precious cave paintings. （2
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• 2、The life boat______in case it is necessary to take off the crew of the damaged ship.A．has
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• 3、Once environmental damage_____ it takes hundreds of years for the system to recover.A．has
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• 4、The medicine was very _____ and he recovered at once after taking it.A.efficientB.good
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• 5、Once environmental damage __________ 选择
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• 6、Taking photograghs is strictly______there in the cave as it may damage the precious cave
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