If the population keeps on growing, there will eventually not be enough resources left to sustain life on the earth.

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问题 If the population keeps on growing, there will eventually not be enough resources left to sustain life on the earth.

选项 A、succeed
B、persuade
C、support
D、continue

答案C

解析 succeed“成功”persuade“劝说”,support“维持,支撑”,continue“继续”。划线单词sustain“维持,支撑”与support意思相近,故选C。句意:如果人口继续增长,最终将没有足够的资源来维持地球上的生命。
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