请根据括号中的中文提示、英文释义或句意,写出句中所缺单词,使句子通顺。The college students have to reach certain ( 标准), or they can't pass the CET-6.Rome is famous for its (belonging to a time long ago in history) monuments.Mr. Brown believes his son can make a right on which college to choose.(决定)The diary always me of the meaningful experience.A year is _____________ into 12 months.