A. To reveal a secret
B. To free an animal
C. To make a mistake
D. To clean up
Answer: To reveal a secret
A. To reveal a secret
B. To free an animal
C. To make a mistake
D. To clean up
Answer: To reveal a secret
Additional Information: 'Let the cat out of the bag' means to accidentally reveal a secret.
Subjects: Idioms and Phrases, Vocabulary