Sentence 1: I was sitting at my computer desk one day. 
 Sentence 3: I grabbed my tools and worked hard on fixing it 
 Sentence 4:  I began to put the desk together and it looked very good 
 Sentence 5:  I put the book on my desk and went back to work 
 Option 1: I put a large book on the surface and the table suddenly collapsed. 
 Option 2: My chair broke and I fell to the floor.