English

Circumlocution means using many words where fewer would do, often in a roundabout or evasive way. The antonyms of circumlocution are words that imply brevity, directness, or simplicity in expression. Among the given options, 'Simplicity' best represents the antonym of circumlocution, as it implies straightforward and clear expression without unnecessary words. 'Effusion' means an outpouring of words or feelings but does not directly oppose the concept of circumlocution. Therefore, 'D' (Simplicity) is the correct antonym.

The antonym of 'gluttony' (excessive eating or greed) is best represented by 'voracity' among the given options, as 'voracity' relates to eager or excessive appetite, but it is actually a synonym rather than an antonym. However, none of the other options ('Fragility', 'Garb', 'Devoid') are antonyms of gluttony. The best antonym for gluttony would be 'abstinence' or 'temperance', but since these are not options, 'Devoid' is not a precise antonym either. Therefore, the question options do not include a perfect antonym, but 'Devoid' is not correct as an antonym. 'Voracity' is closer in meaning but not an antonym. The question should be revised to include a proper antonym or clarify that none of the options are correct antonyms.

Dilapidation means the state of disrepair or ruin, often due to neglect. 'Demolition' is the closest synonym among the options, as it relates to destruction or tearing down, which aligns with the concept of dilapidation.

The word 'blush' means to show embarrassment or shame, often by reddening of the face. 'Effrontery' means shameless boldness or audacity, which is conceptually opposite to the modesty implied by blushing. Therefore, 'Effrontery' is the best antonym among the options.

The word 'imperceptible' means something that is so slight or subtle that it is difficult to perceive or notice. Among the options, 'Subtle' best matches this meaning as it implies something delicate or not obvious.

The term 'modus operandi' refers to the usual way in which something operates or is done, making option C the correct answer. The other options do not accurately capture this meaning.

The word 'infringe' means to violate or break a law, agreement, or right. Among the options, 'Violate' is the closest synonym, while the others have different meanings.

The correct modal verb to express obligation or necessity in this context is 'Must I do all his work tomorrow?' The phrase 'Need I do' is less common and sounds awkward here, while options C and D are grammatically incorrect.

The correct preposition to use with 'exception' in this context is 'to', as the phrase 'no exception to the rules' is the standard idiomatic expression.

The adjective 'ignorant' is conventionally followed by the preposition 'of' when indicating lack of knowledge about something. The phrase 'ignorant of' is the standard and widely accepted usage in English grammar. Therefore, the correct sentence is 'He is ignorant of what he pretends to know.' The option 'to' is incorrect in this context. This is supported by multiple authoritative grammar sources and usage examples.