根据所给的中文或首字母提示，按照句子的要求填写适当的词，每空一词。
After the match ,the judge _______ （宣布）that our team won the title.
He thought it is his duty to help ordinary people _______(暴露) to the disease.
His first speech as president made a strong _______（印象）on his audience.
In the crash he suffered severe _________（伤） to the head and arms.
We must ________ （致力于）our efforts on improving education.
You task will be to examine the _______（可能）of constructing a new factory in China.
Animals in zoos are not in their natural s_________.（环境）
He had a badly s_______ （肿胀）ankle after falling down from the stairs.
My brother a______ （获得）a knowledge of computers by careful study.
I’m d______ （高兴）to hear of your success.