English Idioms About “Time”
Idiom: Moment of truth
Meaning: A deciding instant; the time when a test determines or makes it apparent whether something will succeed.
Example: This is the moment of truth, answer the questions of the test.

English Idioms About “Religion”
Idiom: As ugly as sin
Meaning: If something is as ugly as sin, it is very ugly. The term sin has a religious connotation. It refers to a violation of God’s will, a misdeed.
Example: Jesus Christ! The dress she is wearing is as ugly as sin.

English Idioms About “Animals”
Idiom: Cry wolf
Meaning: To ask for help when there is really no danger.
Example: Because he cried wolf too often, people stopped believing that he needs help.