题目内容
10．-When did your brother begin to work on that farm？-In 2003．He there for 7 years．（ ）
| A． | have worked | B． | has worked | C． | was working | D． | works |
分析 --你的哥哥什么时候开始在那个农场工作的？
--2003年．他在那里工作七年了．
解答 答案：B．根据for 7 years，可知这里是for引导的表示一段时间的时间短语，意思是七年了，在这里表示从2003年开始他哥哥就在那个农场工作一直持续到了现在，所以这个句子使用的时态是现在完成时，构成为：has/have+动词过去分词．He是第三人称，所以应该用has．故选B．
点评 本题考查了时态辨析．解答时注意判断句子所使用的时态以及这种时态的构成形式．
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