13-It is clear from the passage that, originally, rockets were ……. .
A) created by western inventors
B) invented before gunpowder
C) used exclusively in warfare
D) developed by the Tatars
E) unsuccessfully used in battle
14- The author informs us that Sir William Congreve ………… .
A)set fire to the French town, Boulogne
B) was the inventor of the first effective rockets
C) played a major role during the Napoleonic wars
D) commanded and lost the war against the Indians
E) was inspired by the Indians to develop his own rockets
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