Fill in the Blanks

Hindsight means understanding a situation or event only after it has happened or developed.

'Exhaustively' is correct because it means 'thoroughly' or 'completely', which best fits searching through old records systematically. When you search exhaustively, you examine everything carefully and leave nothing unchecked. 'Exclusively' (only), 'effectively' (with good results), 'equally' (to the same degree), and 'evidently' (obviously) don't convey this sense of thorough, complete searching.

Access means 'a way or means of approaching, getting something'. It rightly conveys the meaning of the sentence.

Case of prepositional usage. The sentence implies 'honesty in direction of or honesty for' someone's brother. For this, 'towards' is the right choice.

Case of phrasal preposition. 'To beg for' means 'to plead to be given someone or something'.

Adjectives 'effective' and 'efficacious' have the same meaning i.e., 'producing a definite or desired result'. But normally we use 'efficacious' for persons and 'effective' for methods. Thus, option 1.

Case of phrasal preposition. 'Interfere in' means 'to meddle with something or someone's affairs'.

'But obvious' means 'crystal clear'.

Case of phrasal preposition. 'To think of' means 'to attach importance, value to something'.

Ebony, mahogany, rosewood, rubber, and cinchona are all commercially valuable tree species found in tropical rainforests. These forests, located in high-rainfall equatorial regions, support such high-value timber and medicinal trees due to year-round warm temperatures and abundant moisture. Other forest types (mangroves, montane, deciduous) have different characteristic species compositions.

The one-horned rhinoceros (Indian rhino) is primarily found in the floodplain grasslands and forests of Assam (especially Kaziranga National Park) and West Bengal (in areas like Jaldapara and Gorumara). These regions provide the tall grasslands and wetlands that rhinos need. While Nepal also has a rhino population, the question correctly identifies the Indian states.

The Lakshadweep and Andaman & Nicobar islands, located in the Arabian Sea and Bay of Bengal respectively, have tropical climates that support tropical rainforest vegetation. These forests are characterized by high rainfall, high humidity, and dense multi-layered canopies. Tropical deciduous forests are seasonal, while thorn and montane forests are not typical of these island ecosystems.

We use 'may' to ask for permission. So, option 4 is correct.

Must is used when there is an obligation, like in this sentence, it is necessary to take the medicine. So, option 1 is correct.

We use 'might' to suggest a small possibility of something. Use of 'might' suggests a smaller possibility than 'may'. The use of ‘you ever know’ indicates a very small possibility that she could come. So, option 3 is correct.