environmental damage is done, it takes many years for the ecosystem(生态系统)to recover.
Miss Green is popular with her students as she always tries to make them _________ in her classes.
--Did Jane come to help you yesterday? --Yes, but I would rather _________. She caused me a lot of trouble.
Mary would never do anything that was not _________ of by her parents in order not to make them unhappy.
-- I’ve nothing on me except one dollar to donate, I’m afraid. -- Never mind. _________. We really appreciate your assistance.
_________ across the railway, a train hit it.