阅读下列每个句子，根据空白处的汉语提示填入适当词汇。每空仅限一词。
She’s become the            (嫉妒的对象) of the whole class.
What          (百分比) of your income is taxable?
They asked him to be           (仁慈) to the prisoners.
I _________(犹豫)about whether to accept the invitation when I was asked to the party.                                     
In order to kill time, the boy took a book from the shelf at        (任意).
Sorry to          (打断) you. Can you tell me the time?
You should           (道歉) to the boss for delaying the work.
Many college students worked as         (志愿者) in the 2008 Olympic Games.      
The moon        (反射) the sun’s rays.
Only a few people have         (进入、有权接触) to the full facts of the case.