— Where is Ben?— He to the teachers’ office. He will be back soon.A. go B. has gone C. ha

— Where is Ben? — He to the teachers’ office. He will be back soon.
A. go B. has gone C. has been

解析：考查现在完成时的用法。have been to “曾经去过某地”；have gone to “去某地了，还未回来”。句意：—本在哪里？—他去办公室了。他不久就回来。故选B。

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