English

A 'Cosmopolitan' person is familiar with and comfortable in many different countries and cultures, unlike 'Unsophisticated' or 'Provincial,' which imply a lack of worldly experience. 'All of the above' cannot be correct as the other options contradict the definition.

The term 'Centenary' specifically refers to the hundredth anniversary of a significant event, making option A the correct choice. The other options are unrelated to anniversaries.

All the options—Recondite, Intricate, and Obscure—are synonyms or closely related in meaning to 'Abstruse,' which means difficult to understand or obscure. Therefore, 'All of these' is the correct answer.

"Picayune" means petty or trivial, so its antonym is "Colossal," which means very large or significant. The other options (Piddling, Trifling, Trivial) are synonyms meaning insignificant or minor.

The term "en-route" means "on the way" or "along the route" during travel. Therefore, option B correctly defines "en-route."

The term 'transparent' refers to something that can be seen through clearly, allowing light to pass through it. The other options do not describe this property.

"Apocryphal" means of doubtful authenticity or false. "Genuine" is its antonym, meaning authentic or real, while "Mythical," "Obscure," and "Unsubstantiated" are synonyms or related in meaning to "Apocryphal."

Both 'used to' and 'would' can describe habitual actions in the past. 'Used to' is more versatile and can describe past states as well as repeated actions, and it is used in negative and question forms. 'Would' is used only for repeated past actions (not states) and typically when the past time frame is already clear. In the sentence, 'Early in the morning I _____ feed the cows' describes a habitual past action, so 'used to' fits well. For the second blank, 'would' is more appropriate than 'could' because it expresses habitual past action (playing with children) rather than ability or permission. Therefore, the best choice is 'Used, would' (option B).

Forcing someone to make a payment in exchange for not revealing damaging or discreditable secrets is defined as blackmail. The other options do not relate to this concept.

The sentence is a zero conditional expressing a general truth, so the simple present tense 'answer' is correct rather than 'will answer'. 'If you read the questions carefully, you answer them easily.'