English Grammar

Let's analyze each sentence:
- (i) Arun and Aparna are here: This is correct because "Arun and Aparna" is a plural subject, so it takes the plural form of the verb "are."
- (ii) Arun and Aparna is here: This is incorrect because "Arun and Aparna" is a plural subject, and it should take the plural verb "are," not "is."
- (iii) Arun's families is here: This is incorrect because "families" is plural, and it should take the plural form of the verb "are." The correct form should be "Arun's families are here."
- (iv) Arun's family is here: This is correct because "family" is singular, so it takes the singular verb "is."
Thus, the grammatically correct sentences are (i) and (iv), making option (B) the correct answer.
Final Answer: (B) (i) and (iv)

In this sentence, the correct choice is (D) because the first blank requires a verb, and "know" is the appropriate verb for this context. The second blank requires the noun "no," which fits the context of the sentence.
- First part: "You should know when to say" implies that one should have the knowledge of when to say something.
- Second part: "no" fits the context as it is the word being referred to in the sentence.
Thus, the correct answer is (D) know / no.

- The analogy involves word meanings, where "Cite" means to refer to or quote from references, just as "Implement" means to carry out or put guidelines into action.
- "Sight" and "Site" refer to different meanings not related to the concept of references or guidelines.
- "Plagiarise" means to copy someone’s work without permission, which doesn't fit the analogy.
Therefore, the correct answer is (C) Cite.

- The correct sentence requires a possessive adjective to modify "contributions".
- "Your" is the possessive form of "you", which is used to show possession or association.
- "You are" and "you’re" are contractions for "you are", and "yore" refers to a long time ago, neither of which fit the context.
Thus, the correct answer is (B) your.

The correct preposition to use when referring to content on television is "on," as in "on TV." This is the standard usage in English for discussing programs broadcasted by television networks.