题目内容
17.Before I began this job,I _____ a baby sitter for two years.( )| A. | have been | B. | was | C. | would be | D. | had been |
分析 在我开始这个工作之前,我做了两年照看婴儿的工作.
解答 答案D 过去完成时的构成:had+过去分词.主要是指在过去的某个时间或过去的某个动作之前就已发生的动作.根据before I began this job,可知照看婴儿的工作是在开始这个工作之前就已发生的动作,所以要用过去完成时.故选D.
点评 首先要清楚过去完成时的用法,是在过去的某个动作或某个时间之前就已发生的动作.所以要用过去完成时.
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