Select the sentence that contains a shift in verb voice. 1) mark twain’s writing sometimes makes people laugh, but it also contains serious topics and themes. 2) some pony express riders thought their job was exciting, but it was also very dangerous. 3) women wearing pants was considered strange, but people thought that women wearing hats was fine. 4) after the road was cleared by the plow, it was sanded by a fleet of city-funded trucks. 5) the water level was measured before the storm, and later the number was updated.