题目内容：
A．He can manage his time more flexibly.B．He can renew contact with his old friends.
C．He can concentrate on his own projects.
D．He can learn to do administrative work.
参考答案：
答案解析：
填空题：A．He can manage his time more flexibly.B．He can renew contac
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B．He can renew contact with his old friends.
C．He can concentrate on his own projects.
D．He can learn to do administrative work.