Fill in the Blanks

Present tense 'is called' is used for historical facts and names that remain true regardless of when they occurred. The Epic Age is still known by that name today, so the historical present tense is appropriate. Past tense 'was called' would suggest the name no longer applies.

The preposition 'on' is used with events and occasions in English. When someone is a chief guest at an event like the Annual Sports Day, we say they are the chief guest 'on' that day. 'At' would refer to a location, not an event, while 'is' is grammatically incorrect here, and 'for' would indicate purpose rather than occasion.

(1) and (2) are incorrect because in the case of split infinitive, the word 'to' is placed between an adverb or adverb phrase and the verb. Option (4) is not applicable because (3) is correct.

(1), (2) and (3) are incorrect because in order to express the meaning more clearly, infinitive 'to' is used before the adverb that is qualifying to a verb.

(1), (3) and (4) are incorrect because the adverb ‘too’ is always followed by an infinitive preceded by ‘to’.

(1), (2) and (4) are incorrect because the verb 'make' or any of its forms do not take an infinitive preceded by 'to'.

(1) and (3) are incorrect because the infinitive coming after the verb 'behold' is never preceded by 'to'. (4) is not applicable because (2) is correct.

(1) is incorrect because after 'had better', the infinitive is used without 'to'. (3) and (4) are also incorrect because the prepositions used here are in no way leading to an infinitive.

(2), (3) and (4) are incorrect because in an affirmative sentence if dare is used, then it takes 'to' to form an infinitive of the verb whereas none of the (2), (3) and (4) fulfils this condition.

(1) and (2) are incorrect because in the case of split infinitive, the word 'to' is placed between an adverb or adverb phrase and the verb. (4) is not applicable because (3) is correct

(1), (3) and (4) are incorrect because the infinitive “to”, however in exceptional cases, in order to express the meaning more clearly, may be used before the adverb that is qualifying a verb.

After 'May I also', the base form 'join' is correct for making a polite request or suggestion. The modal 'may' is always followed by the base verb without 'to'. 'Joined' would be past tense, and 'be joining' would suggest permission to be in the process of joining, which is less natural.

Present continuous 'am reading' is correct because Rajesh is describing his current ongoing activity when Rahul asks. The dialogue is happening in present time, and Rajesh is in the middle of reading the collection right now.

Present perfect 'has gone' is correct because Avinash went to his evening class recently and is still there (the action has present relevance). Present perfect connects the past action to the present moment, which fits the context of Mohan asking where Avinash is now.

The base form 'come' is correct after 'may' in the imperative construction 'You may come'. The modal 'may' is always followed by the base verb. 'Be coming' (present continuous) or 'came' (past tense) do not fit the imperative structure giving permission/instruction.