One of these sentences contains an error in sentence completeness (errors in sentences completeness, such as the omission of a verb or a preposition needed to complete the meaning of a sentence.
1. The meteorologist reported a hurricane was approaching.
2. In the honors program, course offerings are multidisciplinary; course structure is flexible.
3. Team members learn both to work and to take risks together.
4. John F. Kennedy’s consumer bill of rights focused on the right to be safe, to be informed, to choose, and to be heard.