English

The idiom "meat and potatoes" refers to the most important and basic parts of something, emphasizing the essential elements rather than extras or details.

The correct spelling of the word is 'Mnemonics,' which refers to memory aids. The other options are misspelled versions of the word.

The term "galling" means causing annoyance or irritation. Therefore, the one-word substitution for "galling" is "Irritating." "Infuriating" is stronger, implying extreme anger, which is not exactly the same as "galling."

The correct preposition to use with 'fond' is 'of'. The phrase 'fond of' means to like or enjoy something, so 'He is fond of mangoes' is correct.

The term 'Orophile' correctly refers to a person who loves mountains. 'Bibliophile' means a lover of books, 'Photophile' refers to organisms or people that thrive in light, and 'Selenophile' means a lover of the moon.

The word 'seminal' means highly influential or groundbreaking, especially in terms of ideas or works that strongly affect later developments. Therefore, 'Influential' is the correct synonym.

The idiom "take the wind out of someone's sails" means to make someone feel less confident or to deflate their enthusiasm, which matches option B. It does not mean changing direction, destroying someone, or making them more confident.

The idiom "See eye to eye" means to agree fully or have the same opinion with someone. Therefore, option C is correct as it reflects this meaning.

In the sentence 'They are enjoying swimming,' the word 'swimming' functions as a noun (a gerund), which is the object of the verb 'enjoying.' Therefore, 'swimming' is a noun in this context.

The correct preposition to indicate sitting next to someone is 'beside'. 'Along' and 'across' do not fit the context of sitting next to someone, and 'None of These' is incorrect since 'beside' is appropriate.