1. Pronoun Agreement Can we agree?

2. Pronoun/antecedent agreement in number A pronoun must agree with its antecedent in number. If the noun is singular, the pronoun must be singular also. Alexander brought the column to a halt; he summoned his mapmaker. The soldiers found Archimedes; they did not recognize the famous old mad.

3. Crick and Watson discovered the double helix; they won the Nobel Prize. If Hemingway or Fitzgerald is here, let him in. Someone lost his copy of The Iliad.

4. Is this correct? Someone lost their book. Correction: Someone lost his/her book.

5. The article escape Someone dropped his or her muffler. (sounds weird) Someone dropped a muffler.

6. Things to avoid The ambiguous reference: Dickens hastened to meet his editor, but he was late. Who was late? The missing antecedent: He was born in 1895. Who is he? The solution: replace problem pronouns with nouns.