【題目】This kind of flu (流感) is terrible, but the government ______ action to prevent it already.

A. has taken B. took C. will take D. was taking

【答案】A

【解析】句意：這種流感很可怕，但是政府已經(jīng)采取行動(dòng)來預(yù)防流感了�？疾閯�(dòng)詞時(shí)態(tài)辨析題。already已經(jīng)，用于現(xiàn)在完成時(shí)，后一句the government是三單人稱，需借助has+過去分詞構(gòu)成完成時(shí)態(tài)。根據(jù)句意和語境，可知選A。

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