Though British and American English have some differences in spelling and pronunciation,they have much .
Having retired from his business, he now ________ himself with the welfare of the disabled.
To get a well-paid job,_____________.
The police will_______ him_____ murder.
______ came that Prime Minister David Cameron(卡梅伦首相) blamed the worst riots(骚乱)in Britain the other day.
The author believes that it is the test system,________ the teachers, that is to blame for the heavy burden of middle school students.