English Skills with Readings 8th Edition by John Langan

Exercise 3

Each item that follows lacks basic punctuation. There is no period to mark the end of one sentence and no capital letter to mark the start of the next. Read each item aloud (or in your head) so that you "hear" where each sentence begins and ends. Your voice will tend to drop and pause at the point of each sentence break. Draw a light slash mark (/) at every point where you hear a break. Then go back and read the item a second time. If you are now sure of each place where a split occurs, insert a period and change the first small letter after it to a capital. Minor pauses are often marked in English by commas; these are already inserted. Part of item 1 is done for you as an example.
When I sit down to write, my mind is blank all I can think of is my name, which seems to me the most boring name in the world often I get sleepy and tell myself I should take a short nap other times I start daydreaming about things I want to buy sometimes I decide I should make a telephone call to someone I know the piece of paper in front of me is usually still blank when I leave to watch my favorite television show.