Fill in the Blanks

'As humid as' is correct because it completes the 'not as...as' comparison structure. 'Like humid as' is ungrammatical, 'humid as' is incomplete, and 'so humid that' changes the meaning to a cause-result structure.

'By studying' is correct because after the preposition 'by', we use a gerund (-ing form). 'To study' is incorrect after 'by', and the other options ('They study', 'They are studying') create run-on sentences or don't fit grammatically.

'To' is correct as it shows direction toward the door. 'In' would mean inside, 'from' shows origin, and 'out' would require 'of' ('out of'). Note: the sentence should read 'He showed him THE way to the door' - there's a missing 'the' in the question.

'The nation will enter' is correct because it provides an independent clause with a subject and verb. 'The entering nation' is a fragment, 'to enter the nation' is an infinitive phrase, and 'will the nation enter' has incorrect word order.

'Fond of playing' is correct because the adjective 'fond' takes the preposition 'of', and 'of' is followed by a gerund. 'Fond to play' incorrectly uses infinitive, and 'fond in/at playing' use the wrong prepositions.

The correct phrase is 'take good care of' your mother. 'Care of' is a fixed prepositional combination in this context. 'Take care about' would mean being concerned about something, and 'take care to' would mean being careful to do something, neither of which fits the meaning of looking after someone.

The sentence requires the present perfect tense 'has' because 'Mohan' is a third-person singular subject. The present perfect tense 'has missed' indicates an action that started in the past and continues to the present or has relevance to the present. 'Have' is used with plural subjects and 'I/you'.

The sentence describes an action that happened at a specific point in the past - at the finish line. 'Threw' is the simple past tense of 'throw' and is the correct form here. 'Through' is a preposition, 'thrown' is the past participle, and 'throwing' is the present participle, none of which fit the sentence structure.

The event is singular, so it requires the singular verb form 'is held' not 'are held'. The passive voice 'is held' is appropriate because the event receives the action - it doesn't hold itself. The sentence could also use active voice future 'will be held' but 'will held' is grammatically incorrect.

Correct Answer: became

The sentence expresses a general truth or present state of knowledge, so the simple present 'know' is correct. The speaker knows (now) that people have expectations. 'Knew' is past tense, 'had known' is past perfect, and 'known' is the past participle - none of which fit the present context.

The sentence requires the future passive construction 'will be spared' because no one receives the action of being spared. 'Will be' indicates future tense passive voice. 'Would be' is conditional, 'could' expresses possibility alone, 'will' lacks the passive 'be', and 'would' is conditional without the necessary structure.

The phrase 'take place' is an idiomatic expression meaning 'to happen' or 'to occur'. Since this incident happened some years ago (past time), the correct form is the simple past 'took'. 'Take' is present tense, 'taken' is the past participle, and 'get' is the wrong verb entirely.

The sentence describes an action that occurred in the past, so the simple past tense 'began' is required. 'Begin' is present tense, 'begun' is the past participle, and 'has begun'/'have begun' are present perfect forms. The context 'some years ago' clearly indicates past tense.

The sentence requires a verb form that indicates having an opportunity in the past. "Had the chance" is the past perfect form used when referring to a completed opportunity or possession. "Have" would be present perfect, "has" doesn't agree with "I", "am" requires a complement, and "was" would need a different sentence structure.