English Questions

Ascent’ means upward moment and is incorrect as per the meaning of the sentence. ‘Accent’ means to emphasize a particular feature; ‘Approof’ means trial, and ‘Assent’ means to give an expression of approval or agreement. Thus, ‘Ascent’ needs to be replaced with ‘Assent’ Thus, the correct formation would be, ‘My father has given his assent for my long tour’.

Everyone has special skills; some people use them very well is the sentence which is correctly punctuated.

Polyglot - A person who knows or speaks many languages.

Linguist - A person who speaks  foreign languages.

Nebulous means hazy, Tiny means small, Vague means unclear, Insignificant means unimportant, Inadequate means in sufficient. So, Nebulous is nearest in meaning to Vague.