Correct Answer: ABABCBBAB

Solution : Given:
A_ _BCD_AB_ _DAA_ _CDA_ _BCD

To fill the series we have to divide the series –
A_ _BCD \ _AB_ _D \ AA_ _CD \ A_ _BCD

Let's check each option –
First option: ACBBABBAB; AACBCD \ BABBAD \ AABBCD \ AABBCD (No repeated pattern has been found)
Second option: ABABCBBAB; AABBCD \ AABBCD \ AABBCD \ AABBCD (AABBCD is repeated in the series)
Third option: ABBBABCAB; AABBCD \ BABBAD \ AABCCD \ AABBCD (No repeated pattern has been found)
Fourth option: BABABABCB; ABABCD \ BABABD \ AAABCD \ ACBBCD (No repeated pattern has been found)

Thus, the series becomes – AABBCDAABBCDAABBCDAABBCD. Hence, the second option is correct.

Correct Answer: about

Solution : The correct choice is the third option.

The preposition about is used to indicate movement or activity in a general area. In this context, it suggests walking around or being present in the surroundings at such a late hour in the pouring rain.

Correct Answer: Manipur

Solution : The correct answer is Manipur.

Every year, Manipur celebrates a four-day festival, the Shirui Lily festival, which includes traditional games, cuisine, music and other cultural events. The Shirui Lily festival took place for the first time in 2017. The festival's primary goals are to raise awareness of the Shirui Lily plant and promote ethical and sustainable travel to Manipur.

Correct Answer: 38

Solution : Given:
DAM is coded as 50, and PAD is coded as 47. 

Subtract 13 from the sum of positional values of the opposite letters of the word DAM, to obtain the required code –
D→W (23); A→Z (26); M→N (14)
= (23 + 26 + 14) – 13 = 50
Thus, DAM is coded as 50.
And, PAD is coded as 47 –
P→K (11); A→Z (26); D→W (23)
= (11 + 26 + 23) – 13 = 47
Thus, PAD is coded as 47.
Similarly, follow the same pattern for MAP –
M→N (14); A→Z (26); P→K (11)
= (14 + 26 + 11) – 13 = 38

So, MAP is coded as 38. Hence, the first option is correct.

Correct Answer: Madhu will be sent away to a boarding school by them.

Solution : The correct choice is the first option.

Passive voice is the voice in which the object experiences an action rather than the person who performs the action. Hence, the object in the active sentence becomes the subject in the passive voice.

The structure of the passive voice in the case of the simple future tense is: "Singular object + will be + past participle form of the verb + prepositional phrase + 'by' followed by the agent of the action."

Therefore, the correct answer is: "Madhu will be sent away to a boarding school by them."

Correct Answer: Madam Hooch said to the students, "What are you waiting for?"

Solution : The correct choice is the fourth option.

Direct speech, where the focus is on the speaker or the person directly expressing the words.

The steps of conversion are as follows:

• The reporting verb "asked" is changed to "said".
• The reported clause will start with the question word "what" to emphasise the interrogative nature of the sentence.
• The third-person pronoun "they" is changed to the second-person pronoun "you".
• The past continuous tense "were waiting" is changed to the present continuous tense "are waiting".
• The words of the speaker are enclosed in the inverted commas.

Therefore, the direct speech would be: Madam Hooch said to the students, "What are you waiting for?"

Correct Answer: I said to my brother, "Have you visited your friend who is in the hospital?"

Solution : The correct choice is the fourth option.

The steps of conversion are as follows:

• The reporting verb "asked" is changed to "said".
• The past perfect tense "had visited" is changed to the present perfect tense "have visited".
• The words of the speaker are enclosed in the inverted commas.
• The connector "if" is removed.
• "He" (third-person pronoun) is changed to "you" (second-person pronoun).

So, the correct sentence would be: I said to my brother, "Have you visited your friend who is in the hospital?"

Correct Answer: Satyendra Nath Bose

Solution : The correct answer is Satyendra Nath Bose.

A novel statistical technique for deriving the blackbody radiation law in terms of a gas of light quanta (photons) was presented by Indian physicist Satyendra Nath Bose in 1924. His theory produced the astounding prediction that a finite fraction of all particles would condense into the lowest-energy single-particle state below a certain critical temperature.

Correct Answer: Efforts to control the invasion of locusts in Rajasthan and Gujarat have been stepped up by the authorities.

Solution : The correct choice is the fourth option.

Passive voice involves rearranging the structure of a sentence so that the subject receives the action of the verb rather than performing the action itself. In this case, "efforts" (the subject) is the recipient of the action "stepped up", which is performed by "the authorities".

The structure of passive voice sentences is: object + "to be" verb + past participle + by + subject (optional).

Therefore, the correct answer is: Efforts to control the invasion of locusts in Rajasthan and Gujarat have been stepped up by the authorities.

Correct Answer: Because of his caring nature all appreciate him.

Solution : The first option is the correct choice.

Active voice emphasises the doer of the action, while passive voice emphasises the receiver. To convert passive to active, we make the subject perform the action and rephrase the verb.

The structure of the active voice in the case of simple present tense is: "Plural subject + base form of the verb + object."

Therefore, the correct answer is: "Because of his caring nature, all appreciate him."