【題目】When was __________ umbrella __________ ?

A. /; invented??? B. a ; discovered??? C. an, discovered??? D. the, invented

【答案】D

【解析】句意：雨傘是什么時候發(fā)明的？discover發(fā)現(xiàn)，invent發(fā)明；傘被發(fā)明應用動詞invented；故排除B和C；a/an表示“一個……”，表示數(shù)量或泛指某類事物，a用于輔音因素開頭的可數(shù)名詞單數(shù)前，an用于元音因素開頭的可數(shù)名詞單數(shù)前； [?m'brel?]的發(fā)音是以元音為開頭的，排除B；可數(shù)名詞單數(shù)不能單獨使用，排除A； the表示特指某事物，the umbrella指這種雨傘的發(fā)明，an umbrella表示泛指雨傘的發(fā)明。根據(jù)語境和句意可知選D。

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