English

The correct sentence is 'The class teacher allowed Saba to move to another chair.' 'Allowed' is the past tense verb that fits the sentence structure, and it requires 'to' before the verb 'move.' 'Let' is incorrect here because it does not take 'to' and would require a different sentence structure (e.g., 'The class teacher let Saba move...').

The word "incur" means to become subject to something undesirable, such as a cost or penalty. Its antonym is "avoid," which means to keep away from or prevent something undesirable from happening.

The correct past participle of 'find' is 'found,' which fits the present perfect tense used in the sentence. 'Finded' is incorrect, 'founded' means to establish something, and 'find' is the base form, so 'found' is the correct choice.

The correct phrase is 'will also be' because 'also' should be placed between the auxiliary verb 'will' and the main verb 'be' to form a grammatically correct sentence.

The adjective 'sensible' can be followed by the preposition 'of' when it means aware or perceptive about something. The phrase 'sensible of the difficulties he faces' is correct and idiomatic English, meaning he is aware of the difficulties. Other prepositions like 'to', 'with', or 'at' do not fit grammatically in this context.

The correct article before 'MNA' (Member of National Assembly) is 'the' because it refers to a specific position held by the person during a defined period. 'An' is incorrect because 'MNA' starts with a consonant sound, and 'a' is less appropriate here as it implies any MNA, not a specific one.

The correct preposition to use after the phrase 'There is no point' is 'in', making 'There is no point in arguing' the correct form. Other options do not fit grammatically in this context.

The correct preposition to indicate that nitrogen gas is plentiful within the Earth's atmosphere is 'in'. 'On' is used for surfaces, which is incorrect here. Therefore, 'in' is the correct choice.

The word 'kowtow' means to act in an excessively subservient manner, which is synonymous with 'prostrate' in the sense of bowing down or showing submission. The other options do not convey this meaning.

The conjunction 'but' correctly connects two contrasting ideas: the house is large, yet it is quite old-fashioned. This shows contrast, which 'but' expresses well.