根据下列句子所给汉语意思和首字母，写出该单词的正确形式（每空仅一词）
When something can help people or improve their lives, we say it is
b          (有益的) to people.
Now I am very outgoing and have learned to          (适应) to my
disability.
He had no t        (天赋) for expressing himself on paper.
Mr. Hill has made up his mind to       (离婚) his wife.
The poor child was          (抛弃) by his parents and was found
wandering in the street.
She put aside a small sum every week to pay for her         (每年的)
holiday.
I       (整理，布置) the flowers in the vase as soon as I came back.
We should do something to protect the water on the earth.         (否则的话)
the last drop will be our tears.
Have you made            (准备) for the coming festival?
Everyone in the class is expected to p        (参与) in the discussion.