Use the right form of the verbs:

Here's a detailed explanation for the usage of articles in each blank:

    
• (a) x (No article): Articles are not used before pronouns like 'him'. 'Him' already refers to a specific person.
    
• (b) the: 'Freedom' here is made specific by the phrase "of his country." When a noun is followed by a qualifying phrase (often with 'of'), 'the' is used to indicate a specific or definite instance of that noun.
    
• (c) x (No article): 'His' is a possessive adjective that already determines and specifies 'country'. Possessive adjectives (my, your, his, her, its, our, their) eliminate the need for an article.
    
• (d) A: "A man without patriotism" refers to any general, singular, countable man who lacks patriotism. 'A' is used before singular countable nouns that begin with a consonant sound and are non-specific.
    
• (e) a: 'Beast' is a general, singular, countable noun starting with a consonant sound. 'A' is used for non-specific references.
    
• (f) A: "A true patriot" refers to any general, singular, countable individual who fits the description of a true patriot. Similar to (d), 'A' is used for non-specific singular countable nouns.
    
• (g) x (No article): 'His' is a possessive adjective already specifying 'countrymen'. Therefore, no article is required.
    
• (h) the: 'Betterment' is made specific by the phrase "of his country." Similar to (b), 'the' is used when a noun is followed by a descriptive phrase making its reference definite.
    
• (i) x (No article): 'His' is a possessive adjective, which already acts as a determiner for 'country', making an article unnecessary.
    
• (j) the: "On the contrary" is a common idiomatic phrase where 'the' is fixed.
    
• (k) an: "An unpatriotic man" refers to any general, singular, countable man who is unpatriotic. 'An' is used before singular countable nouns that begin with a vowel sound.