1. From a speaker on the wall comes the doctor´s voice:"Good morning."
    从墙上的一个扬声器里传来医生的声音:" 早上好."

2. From the moment he arrived there, he kept on pestering his doctor to tell him when he would be able to go home.
    从他进医院那一刻时，他就缠住医生，让医生告诉他什么时候能回家。

3. First, older exercisers should be sure to check with a doctor to make sure any new exercise program is safe and appropriate.
    第一，老年运动者应该接受医生的检查，以确保新的锻炼计划安全合理。

4. For the 30 years I have been a doctor, and for hundreds of years before that, doctors and families have been quietly cooperating to decide what is best for a patient in the final phase of an illness.
    在我行医的30年里，以及在这之前的数百年里，医生和病人家属一直合作默契，共同决定在疾病的最后阶段怎么做才对病人最好。