Mrs.Wang angd Grandma ____to Beijing before.(be)用现在完成时,怎么写?急

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Mrs.WangangdGrandma____toBeijingbefore.(be)用现在完成时,怎么写?急Mrs.WangangdGrandma____toBeijingbefore.(be)用现

Mrs.Wang angd Grandma ____to Beijing before.(be)用现在完成时,怎么写?急
Mrs.Wang angd Grandma ____to Beijing before.(be)用现在完成时,怎么写?急

Mrs.Wang angd Grandma ____to Beijing before.(be)用现在完成时,怎么写?急
have been

has been