31.  Not knowing they needed the vaccines was the most common reason that study participants gave for not getting the shots.

32.  Opening up a house is among the most common reasons these homeowners gave for remodeling their ranch homes.

33.  One common reason for using nonconventional methods is to make the fight against cancer more tolerable.

34.  Peer pressure and boredom during the games are the two most common reasons players start using tobacco, Garagiola said.

35.  Schoolchildren are the most common reason lawmakers give for the bills.

36.  That was the most common reason.

37.  The condition is the fifth most common reason for which antibiotics are prescribed.

38.  The father smiles broadly and tells her he wants his son to look like him, a common reason for circumcision.

39.  The most common reason for people to drop the practice of switching sexual identities was that it stopped being interesting or that their curiosity had been satisfied.

40.  The most common reason a film becomes orphaned is because a small independent film company collapses.