题目内容
19.Television was invented by John Baird and it is one of the greatest50 inventions in the world.分析 电视是由约翰贝尔德发明的,这是世界上最伟大的发明之一.
解答 答案:inventions 根据"one of the greatest ______ in the world."可知世界上的发明有很多,电视只是其中的一个,所以invention要用复数形式,故填inventions.
点评 one of后面要加复数名词,如果是the only one of的话,后面要用单数名词.
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