The teacher said that ____________________.
A.lighttravelmuchfasterthansoundB.lighttravelledmuchfasterthansoundC.lighthadtravelle...
A. light travel much faster than sound
B. light travelled much faster than sound
C. light had travelled much faster than sound
D. light travels much faster than sound 展开
B. light travelled much faster than sound
C. light had travelled much faster than sound
D. light travels much faster than sound 展开
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