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

تمرين 10

Insert necessary commas. For each sentence write, in the space provided the number of commas that you inserted. If the sentence is correct, write C. Be prepared to explain each comma.
Safeco a Seattle-based insurance company introduced Teensurance which uses a device under the dashboard that alerts parents by e-mail if their child is speeding. ________________