你去哪儿了?我去图书馆 where _____ you ____ l _____ the library.

题目

你去哪儿了?我去图书馆 where _____ you ____ l _____ the library.
你爸爸在哪儿?他去公园了
where 's your father?he _______ the park.

答案

have been
have been to
has gone to
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