He has been exposed to a good business over the years on the back of his friend.什么意思?He has been exposed to a good business over the years on the back of his friend.能不能帮忙翻译一下呀?

He has been exposed ___English in American over the two years.用into还是to He has been exposed ____English in America over the past two years.选项:a、withb、inc、intod、to He has been exposed to a good business over the years on the back of his friend.什么意思?He has been exposed to a good business over the years on the back of his friend.能不能帮忙翻译一下呀? long has he been away? He has never been abroad,has he?怎么翻译 he has been to beijing.什么时态? 翻译: He has been dozens of times. he has been there _twice____.画线提问 he has been in english since last He has been here ___since yesterday.___ He has never been there.英译汉 He has not been back yet He has been( )(die) fou two days. He has been abroad many times. He think he has been to shanghai ,does he. He has been to the Great Wall中为什么been He has never been abroad before.这里的been是什么 为什么he has never been to London,has he?为什么后面用has he?