FIA UDC Paper 2019

The correct auxiliary verb to form a question in the past tense is 'did'. Therefore, 'Why did you break your promise?' is grammatically correct. 'Is' and 'done' do not fit the question structure, and 'None of these' is incorrect since option B is correct.

Both 'People' and 'Ransom' are nouns. 'People' is a noun referring to a group of human beings, while 'Ransom' is a noun referring to the sum of money demanded for the release of kidnapped individuals. 'Innocent' is an adjective describing the people. Given the options, 'Ransom' is also a correct noun, and since the question asks for a noun without further specification, 'Ransom' is a valid answer. However, 'People' is also a noun. The question is ambiguous as both A and B are nouns, but 'Ransom' is the more precise noun related to the context of kidnapping for ransom.

The 11th month of the Islamic calendar is Dhu al-Qa'dah. Shawwal is the 10th month, Safar is the 2nd month, and "None of these" is incorrect.

The North-West Frontier Province (NWFP) was officially renamed Khyber Pakhtunkhwa (KPK) on 18 April 2010, following the 18th Amendment to the Constitution of Pakistan. This date is historically recognized as the official change date.

A 'commuter' is defined as a person who travels regularly between home and work or school, making option A the correct answer. The other options do not relate to the meaning of 'commuter'.

Muhammad Ali Johar studied at Cambridge University in England, where he completed his higher education. Therefore, option B is correct, not A.

Vitamin B12 is naturally found in animal-based foods such as fish and meat, so both options A and B are correct, making option C the best choice.

An appositive noun renames or identifies another noun next to it. In the sentence, 'singer' renames 'my brother' and is the appositive noun. However, option A 'The Singer' is incorrect because the sentence uses 'singer' without 'The'. Options B and C are not nouns, and D 'None of these' is correct since none of the options exactly match the appositive noun 'singer'.

Option A correctly uses the present perfect continuous tense with the appropriate preposition 'for' to indicate duration. The original sentence is grammatically incorrect and uses 'since' improperly with a duration. Options B, C, and D use incorrect prepositions for expressing duration.

According to Islamic tradition, Prophet Idrees (A.S) is credited with introducing the use of soap and teaching people about hygiene. The other prophets listed are not associated with the invention of soap.