根据句子意思，用括号中所给单词的正确形式填空
Would you please say something about_____(blind) in the world?
His brother went abroad for _______(far) study last year.
Can I have a _____(medicine) examination(检查) today?  I feel ill.
The heavy work _____ (affect) his health, so he looked much older.
They can’t afford _____(pay) the car.