选出与所给句子划线部分意义相同或相近的一项。

—Millions of visitors have a great time in the Expo Garden in Shanghai this year.

—My family plans to go on vacation in Shanghai this summer. [ ]

A. make themselves at home

B. find themselves

C. enjoy themselves

D. help themselves

在党的委员会中，书记、副书记和委员享有（）的权利，个人不能决定重大问题或者改变委员会的决定。