Generally, no. Cengage does not sell the answer key as a standalone student product. You must either purchase the Teacher’s Edition or legitimately access it via MyELT.
Even in classrooms, students want to verify their responses before submission. This can be responsible preparation or, unfortunately, a shortcut. World English 2 Third Edition Answer Key
Many universities and language schools have internal learning management systems (Canvas, Blackboard, Moodle) where instructors upload answer keys for specific units. These are password-protected for enrolled students only. Generally, no