I AM WRITING IN RESPONSE TO THE EMAIL I RECEIVED FROM YOU ON THE 21ST JULY 2002. I AM a.____AFRAID____I WILL BE b.__UNABLE______ TO ATTEND OUR MEETING c.___DUE TO___ A WORK MEETING ARRANGED ON THE SAME DAY. THE ONLY SOLUTION TO DISCUSS OUR DIFFERENCES WOULD BE TO MEET ANOTHER DAY. d.______COULD__ IT BE POSSIBLE TO ARRANGE ANOTHER e._____APPOINTMENT__? DO NOT f.___HESITATE___ TO CONTACT ME WHENEVER YOU FIND A FREE DAY FOR OUR MEETING. I WOULD BE g.___GRATEFUL___ IF YOU COULD INFORM ME ABOUT THE DAY AS SOON AS POSSIBLE.
You would need to introduce a list. For example you could have: My shopping list contains of; milk, bread, and yogurt. Another purpose is to separate clauses.