If we _________ the earth, we must take action before it is too late. A.will save B.are t.
Ifwe_________theearth,wemusttakeactionbeforeitistoolate.A.willsaveB.aretosaveC.areabo...
If we _________ the earth, we must take action before it is too late. A.will save B.are to save C.are about to save D.are saving
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