34. If the object after " most " is singular then the verb is singular too, else if the object after " most " is plural then the verb is plural: Most of his ideas are silly. (ideas - plural, are - plural) Most of his money is spent on PC games. (money - singular (uncountable), is - singular) Your second and third sentences are correct. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.