讲下列句子中的括号部分改为定语从句

讲下列句子中的括号部分改为定语从句
1.The workers injured in the accident are now being taken good care of in the hospital
2.I found it hard to understand the English spoken by the native villagers .
3.The old man who talked to us on the bus is a retired teacher.< a retired teacher>
4.He did not turn up at the meeting held yesterday afternoon