The class teacher said at the closing meeting: "The students in our class have achieved excellent results in the past year. Some have won awards in the Olympic competition, some have won awards in the oral English competition, and some have danced. Won the prize in the competition. There are many female students in our class . ". Can be inferred from this. ['All students who have achieved excellent results are female classmates.', 'There must be female classmates who have achieved excellent results.', 'There are more female classmates than male classmates.', 'There may not be female classmates who achieve excellent results.']