He______ on the farm for twenty years and now he is a teacher.A.has worked B.had worked C.worked D.works不是有for+一段时间么,为什么不能选b呢
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![He______ on the farm for twenty years and now he is a teacher.A.has worked B.had worked C.worked D.works不是有for+一段时间么,为什么不能选b呢](/uploads/image/z/11839485-21-5.jpg?t=He______+on+the+farm+for+twenty+years+and+now+he+is+a+teacher.A.has+worked+B.had+worked+C.worked+D.works%E4%B8%8D%E6%98%AF%E6%9C%89for%2B%E4%B8%80%E6%AE%B5%E6%97%B6%E9%97%B4%E4%B9%88%2C%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%8D%E8%83%BD%E9%80%89b%E5%91%A2)
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He______ on the farm for twenty years and now he is a teacher.A.has worked B.had worked C.worked D.works不是有for+一段时间么,为什么不能选b呢
He______ on the farm for twenty years and now he is a teacher
.A.has worked B.had worked C.worked D.works
不是有for+一段时间么,为什么不能选b呢
He______ on the farm for twenty years and now he is a teacher.A.has worked B.had worked C.worked D.works不是有for+一段时间么,为什么不能选b呢
He______ on the farm for twenty years and now he is a teacher
选C
因为后面说了他现在是一名老师
现在完成时时发生在过去对现在有影响的的事情,而这边对现在已经没有影响了,因为现在是一名老师,所以不用完成时
for twenty years是现在完成时的标志
因为and后面的句子是一般式,所以只能用 A. has worked如果and后面用的是he was a teacher你才能选b
没有过去的过去时间状语,不能用B.
选B的话,是过去的过去,后句只有一般现在时,过去一步是现在完成时
若此句是过去式,过去一步是过去完成时了
on farm on the farm 区别
on the farm
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on the farm 在农场?
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He______ on the farm for twenty years and now he is a teacher.A.has worked B.had worked C.worked D.works不是有for+一段时间么,为什么不能选b呢
是in the farm 还是 on THE FARM
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