【題目】The organization ______ thousands of homeless animals since last year.
A.has saved
B.saved
C.was saving

【答案】A
【解析】句意：自從去年以來(lái), 這個(gè)組織已經(jīng)挽救了成千上萬(wàn)個(gè)流浪動(dòng)物. 根據(jù)時(shí)間狀語(yǔ)since last year結(jié)合句意"自從去年以來(lái), 那個(gè)組織已經(jīng)挽救了成千上萬(wàn)個(gè)流浪動(dòng)物. "判斷用現(xiàn)在完成時(shí)現(xiàn)在完成時(shí)的構(gòu)成是：主語(yǔ)+have/has+動(dòng)詞的過(guò)去分詞;主語(yǔ)是單數(shù)名詞, 助動(dòng)詞用has, 所以答案是A。

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