------superstitious beliesfs about mandrake plant.A people have had long B have people long had
C people have long had D long have had people
人气：174 ℃ 时间：2020-03-25 02:58:52
解答
C people have long had 为什么是这个long 是副词， 常用于否定句， 一般不用于肯定句。偶尔用于肯定句， 得放在行为动词前， 助动词后。再如：He has been ill long (此为错句）He has long been ill (正确）
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