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

تمرين 53

Insert necessary commas. In the space provided, indicate briefly the reason for the comma or its absence (for example, independent adjectives, introductory verbal phrase, introductory clause , and so forth). Write C if the sentence is correct.
In 1927 Herbert Hoover placed the first videoconference call from Washington to the president of AT T in New York. ________________