It was officially opened on June 11, 2005 as part of the celebrations to 11 Norway's centenary as an independent country.
答案：(D) mark
mark Norway's centenary（紀念挪威獨立百年）表示諾貝爾和平中心的開幕是紀念挪威獨立百週年慶祝活動的一部分；help／solve／take 均不符合此處語意搭配。
mark 這個字，你的印象大概只有「做記號、標記」，所以看到 celebrations to mark 會覺得「慶祝活動去標記一個百年」很奇怪，反而覺得 help 或 take 讀起來比較安全。
四個選項是四個不同的動詞，文法上都放得進 to 後面的原形位置，可見這一格考的是語意，只能往前後文找。空格前是 as part of the celebrations to（作為慶祝活動的一環，而活動的目的是……），空格後是 Norway's centenary as an independent country（挪威獨立建國的百週年）。慶祝活動存在的目的，就是紀念這個百年。mark 除了做記號，還有「以活動或儀式紀念、慶祝某個日子或事件」這個意思（劍橋詞典 mark 詞條），常見的組合是 a ceremony to mark the anniversary。兩個意思是接得起來的：先在時間軸上把那個日子標出來，再為它辦活動，就是紀念。同一份考卷的第 16 題四個選項也是四個不同的名詞、文法上全部放得進去，同樣只能靠上下文定案，兩題的做法一樣。另外一提：這一篇選文後來被 107 學年度起適用的指考參考試卷沿用，同一格在那份卷子上是第 11 題，兩邊是同一題，不是網站重複。
help（幫助）、solve（解決）、take（拿、花費）三個都是高頻字，但沒有一個與 centenary 組得起來：慶祝活動不會去「幫助」一個百年；solve 後面接的一定是待解的難題（solve a problem、solve a mystery），「解決一個百年」語意矛盾；take 若讀成「花費」，句子裡缺少要花掉的時間或金錢。
mark an anniversary（紀念某個週年）、a ceremony to mark the occasion（為某個場合舉行的紀念儀式）、as part of ＋ 名詞（作為……的一環）、centenary（百週年）、be officially opened（正式開幕）、solve a problem（解決問題）。
The Nobel Peace Center is located in an old train station building close to the Oslo City Hall and overlooking the harbor. It was officially opened on June 11, 2005 as part of the celebrations to 11 Norway's centenary as an independent country.
It is a center where you can experience and learn about the various Nobel Peace Prize Laureates and their activities 12 the remarkable history of Alfred Nobel, the founder of the Nobel Prize. In addition, it serves as a meeting place where exhibits, discussions, and reflections 13 to war, peace, and conflict resolution are in focus.
The Center combines exhibits and films with digital communication and interactive installations and has already received attention for its use of state-of-the-art technology. Visitors are welcome to experience the Center 14 or join a guided tour. Since its opening, the Nobel Peace Center has been educating, inspiring and entertaining its visitors 15 exhibitions, activities, lectures, and cultural events. The Center is financed by private and public institutions.