Miss Wang have taught English for ten years(同意句转换)It ( )ten years since Miss Wang ( )English

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Miss Wang have taught English  for ten years(同意句转换)It (   )ten years since Miss Wang (  )English

Miss Wang have taught English for ten years(同意句转换)It ( )ten years since Miss Wang ( )English
Miss Wang have taught English for ten years(同意句转换)
It ( )ten years since Miss Wang ( )English

Miss Wang have taught English for ten years(同意句转换)It ( )ten years since Miss Wang ( )English
has been taught
或is taught
前一个完成时和一般时都可以,但since后面只能跟过去式 如果不限词数,也可用began to teach

has been taught

(was) (have taught)

It has been ten years since Miss Wang taught English

(had) (since)