Business English 10th Edition by Mary Ellen Guffey,Carolyn Seefer

تمرين 54

In each pair of sentences, select the one that is punctuated or written properly. (a) The person, who serves as Harvard Medical School's chief information officer, was among the first to have a radio-frequency chip put into his arm to help doctors locate his medical records in an emergency.
(b) The person who serves as Harvard Medical School's chief information officer was among the first to have a radio-frequency chip put into his arm to help doctors locate his medical records in an emergency. ______________