We should play a part in ______ the earth.A.SaveB.to saveC.savingD.saved

We should play a part in ______ the earth.A.SaveB.to saveC.savingD.saved

题型:不详难度:来源:
We should play a part in ______ the earth.
A.SaveB.to saveC.savingD.saved

答案
C
解析

试题分析:句意:我们应该在挽救地球方面起很大的作用。play a part in doing sth.在做某事中起着很大的作用。 故选C。
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