----Is that Jack speaking?--Sorry he isn’t in right now. He the park with his mother.

问题补充：

----Is that Jack speaking?

----Sorry, he isn’t in right now. He the park with his mother.

A. have been to B. has gone to C. has been to

答案：

解析：本题的含义是他现在不在，他和他的母亲去了公园。表示不在某处，去了某地在英文中通常用have或has gone to，故本题选B。