Nooneknowsexactlyhowtheearthbegan.However,accordingtoaw...
问题详情：Nooneknowsexactlyhowtheearthbegan.However,accordingtoawidely__61_(accept)theory,itbaganwitha“BigBang”.Thentheearthexploded__62_(loud)andproducedwatervapourandmanygases,__63_(make)theearth’s...