语法题.In 1911 the Great Blue Norther,a massive storm in the midwestern United States,(it caused) temperatures in some cites to drop more than 60 degrees in a single day.为什么用caused 不用causing.
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![语法题.In 1911 the Great Blue Norther,a massive storm in the midwestern United States,(it caused) temperatures in some cites to drop more than 60 degrees in a single day.为什么用caused 不用causing.](/uploads/image/z/5431976-8-6.jpg?t=%E8%AF%AD%E6%B3%95%E9%A2%98.In+1911+the+Great+Blue+Norther%2Ca+massive+storm+in+the+midwestern+United+States%2C%EF%BC%88it+caused%EF%BC%89+temperatures+in+some+cites+to+drop+more+than+60+degrees+in+a+single+day.%E4%B8%BA%E4%BB%80%E4%B9%88%E7%94%A8caused+%E4%B8%8D%E7%94%A8causing.)
语法题.In 1911 the Great Blue Norther,a massive storm in the midwestern United States,(it caused) temperatures in some cites to drop more than 60 degrees in a single day.为什么用caused 不用causing.
语法题.
In 1911 the Great Blue Norther,a massive storm in the midwestern United States,(it caused) temperatures in some cites to drop more than 60 degrees in a single day.
为什么用caused 不用causing.
语法题.In 1911 the Great Blue Norther,a massive storm in the midwestern United States,(it caused) temperatures in some cites to drop more than 60 degrees in a single day.为什么用caused 不用causing.
In 1911 (时间状语)the Great Blue Norther(句子主语),a massive storm in the midwestern United States,(主语同位语) caused (句子谓语)temperatures in some cites to drop more than 60 degrees in a single day
cause 在此句中充当谓语,句中又有In 1911 表示明确的过去时间的时间状语,所以用cause过去时.causing不能作谓语,它是非谓语形式.