1. If we manage to __________ our natural resources, we would leave a better planet for our children.
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By: guest on 02 Jun 2017 12.54 am
The clue in this sentence is 'If we manage to __________ our natural resources' and 'better planet'. This implies that the blank should be filled by a word which means 'preserve' or 'keep for long time'. Therefore the word 'conserve' is the right answer.