英语:How many times has the doctor been to England?---he ____ there twice填空并说明理由

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英语:How many times has the doctor been to England?---he ____ there twice填空并说明理由
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英语:How many times has the doctor been to England?---he ____ there twice填空并说明理由
英语:How many times has the doctor been to England?---he ____ there twice
填空并说明理由

英语:How many times has the doctor been to England?---he ____ there twice填空并说明理由
空格内填has been

went- past tense
he went there twice already

填has been
问句里面是问的has..been
那回答肯定是has been啊

has been
问句中应该是have the doctor been to England?
回来完成时的问题还用完成时

How many times has the doctor been to England?---he _has been___ there twice.
因为根据问句中的主谓而定