题目内容
15.Peterhasswum (swim) across the river many times so far.分析 到目前为止彼得曾多次游过河.
解答 答案:has swum 考查单词填空.根据题干中的so far,到目前为止,可知时态是要用现在完成时,构成 是主语+have/has+过去分词,主语是Peter,助动词用has,swim的过去分词是swum,故答案是has swum.
点评 考查单词填空.准确的翻译句意及分析句子结构、时态、固定搭配等是关键,然后再用合适的形式完成句子.
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