I am reading Arthur's Teacher Trouble. I am not sure of who made some mistakes: Mr. Ratburn made some mistakes with correcting their papers, or Francine misspelled some words in her test. Could anyone tell me who made mistakes? Here's the context:
Mr. Ratburn corrected their papers during lunch. "Class," he said, "most of you did very well on the test. But only two of you spelled every word correctly." Muffy smiled. Francine hiccuped. Buster patted his good-luck charm. Mr. Ratburn cleared his throat. "Our class representatives for the spellathon will be the Brain and Arthur."
"There must be some mistake!" said Muffy.