Insert only necessary commas in the following sentences . For your answer , indicate the number of commas you added (1,2,3,etc.) . If the sentence requires no commas , write C.

We will be able to process your application when you return the completed form . The employees who have been with us over ten years automatically receive additional insurance benefits . Knowing that you wanted this merchandise immediately I took the liberty of sending it by FedEx . The central processing unit requires no scheduled maintenance and has a self-test function for reliable performance . A tax credit for energy -saving homes will expire at the end of the year but Congress might extend it if pressure groups prevail. Stacy Wilson our newly promoted office manager has made a number of worthwhile suggestions . For the benefit of employees recently hired we are offering a two-hour seminar regarding employee benefit programs . Please bring your suggestions and those of Mr. Mason when you attend our meeting next month . The meeting has been rescheduled for September 30 if this date meets with your approval . Some of the problems that you outline in your recent memo could be rectified through more stringent purchasing procedures