Lily with her parents______Oxfam since two years ago.

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Lily with her parents______Oxfam since two years ago.
为什么用has been in?

正确答案是：has been in
wih 连接两个主语时,谓语动词用就远原则,即根据with 前面的主语 Lily 来确定,所以用单数 has
since two years ago 是现在完成时的标志
句子意思是：自从两年以前莉莉和她的父母就参加了乐施会.

Lily with her parents______Oxfam since two years ago. Lily with her parents ______ Oxfam since two years ago. A．ha Lily with her parents_______ the Greener China since two yea SINCE TWO YEARS AGO的同义句 Mr Smith with his parents ______ China since two years ago. the swimming club opened two years ago（用since two years ago since two years ago与since two years的区别,分别用在什么时态? Mr green has ()us English since two years ago They ___(live) there since two years ago How long ___ your mother ___?Since two years ago. Since they(visited/have visited)hangzhou two years ago,they( Dave __ (learn) Chinese since two years ago