English

The phrase 'to make a clean breast of' means to confess something completely and without reservation. Option C correctly captures this meaning, while the other options do not.

The phrase "die in harness" means to die while still actively working or serving, especially in a job or duty. This matches option C, "die while still working."

The word "fiasco" means a complete failure or disaster, so its synonym is "failure." The other options do not convey the same meaning.

The phrase 'to set one's face against' means to oppose something firmly or with determination. This idiomatic expression is best captured by option A.

The idiom 'to end in smoke' means to fail or be ruined, which aligns with option B 'To ruin oneself.' The other options do not match the meaning of this phrase.

"Panacea" means a solution or remedy for all difficulties or diseases, which is synonymous with "Cure-all." The other options do not share this meaning.

The correct spelling of the word meaning to replace or take the place of something is 'Supersede'. The other options are common misspellings.

The sentence is a conditional statement implying a future consequence. The correct grammatical form is 'You will not be successful' to indicate a future negative outcome if the condition is not met.

The phrase "black and blue" is an idiom that means covered with bruises, typically from being beaten or injured. Therefore, option A, "Full of bruises," correctly defines the phrase.

The idiom "to have an axe to grind" means to have a private or selfish motive, often to serve one's own interest. Option A correctly captures this meaning.