As we know, penicillin became the greatest drug of the 20th century, ______ millions of lives.
A.to saveB.savingC.savedD.Save
B
考查非謂語(yǔ)動(dòng)詞。根據(jù)句子結(jié)構(gòu)可知, ______ millions of lives作伴隨狀語(yǔ),save和它的邏輯主語(yǔ)penicililin之間是主動(dòng)關(guān)系,故采用saving形式,to save表目的 ,saved表被動(dòng) save用于祈使句
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