Who do you think ________ for the accident?
If man can’t live _______ harmony _______ nature, the balance will be destroyed.
-----where has his brother been ? ------No one knows. He has returned home safely but his missing made the police _____ .
I don’t think I’ll need any money but I’ll bring some _____ .
You don’t have to _____ me you’re the right person for the job.
I wrote a letter of complaint, and the airline has promised to _____ the matter.