题目内容
1.______ at the airport for an hour,he suddenly realized he had left his ID card on his table.( )A. | Waiting | B. | To wait | C. | Having waited | D. | To have waited |
分析 在机场等了一个小时,他突然意识到自己把身份证丢在家里的桌上了.
解答 答案:C
句中有逗号分隔,没有连词,要用非谓语动词;wait与主语he构成主谓关系,且句意表达的是发生在谓语动词realized之前的动作,要用现在分词的完成式.故选C.
点评 现在分词是非谓语动词的一种,表达主动或进行;过去分词表达被动或完成;动词不定式表达未发生的动作.学习时,要注意区分和掌握.
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