Sentence 1: Wilfred wanted to throw a BBQ for all of his friends and neighbors. 
 Sentence 3: Two of his friends helped with the preparations 
 Sentence 4:  On the day of the barbecue everything was going well until it rained 
 Sentence 5:  The barbecue continued inside the house and everyone had fun 
 Option 1: He went to the store to buy the meat. 
 Option 2: His plans had to be delayed indefinitely due to an illness that struck him.