English

The word 'loquacious' means very talkative or chatty. Among the options, 'Talkative' is the correct synonym, while the others do not relate to the meaning of 'loquacious'.

"Hue" refers to a color or shade, so the synonym is "Colour." The other options do not relate to the meaning of "Hue."

Option C, "Why is a lie told by you?", is the correct passive voice form of the question "Why do you tell a lie?". It correctly uses the passive structure with the verb "is" and past participle "told".

Option D is the correct passive voice form of the question. It uses the correct auxiliary verb 'was' to agree with the singular subject 'the best part' and the past participle 'wasted'. The other options have incorrect word order or verb forms.

Option C, 'By whom a car was designed?' is the correct passive voice question form corresponding to 'Who designed a car?'. It correctly uses the past simple passive structure with 'was designed'. The other options are grammatically incorrect or use inappropriate tense/aspect.

The question asks for an adverb to describe how she sings. 'Beautifully' is the most appropriate and commonly used adverb to describe singing in a pleasing manner, making option B correct. 'Nicely' and 'Sweetly' are also adverbs but less commonly used in this context, and 'None of these' is incorrect.

The word 'obscure' means something that is not clear or is difficult to understand, so 'confusing' is the closest synonym among the options provided. The other options have opposite or unrelated meanings.

The word "quotidian" means daily or ordinary. Its antonym is "extraordinary," which means unusual or remarkable, making option A the correct answer.

The idiomatic phrase "Spick and Span" means spotlessly clean or very tidy. It is commonly used to describe something that is neat and clean.

The idiom "Beat about the bush" means to avoid talking about the main topic or issue directly. It is commonly used to describe someone who is being indirect or evasive.