Answer the following question below and choose the option that best completes the gap(s) One should be careful how......behaves in public, shouldn't.......

Analyze the question: This is a test of pronoun agreement. The sentence begins with the indefinite pronoun "One," so the pronouns in the gap and in the question tag must be consistent with it.

Concept: When a sentence starts with the impersonal pronoun one, formal English keeps using one for later references to the same person.

• One should be careful how one behaves.
• The question tag must also match the subject: shouldn't one?

(In American English, he is sometimes used to refer back to one. However, the tag must still agree with the pronoun used earlier, and mixing the two forms is poor style in the standard formal English that JAMB tests.)

Solution:

1. First gap: "One should be careful how ___ behaves in public." The formal, consistent choice is one.
2. Second gap (question tag): the tag repeats the subject of the main clause, which is one. So we get "shouldn't one?"
3. Check the options: • A. one/one → "One should be careful how one behaves in public, shouldn't one?" ✔ Consistent and grammatical. • B. he/lie → "lie" makes no sense here. • C. she/one → "she" switches the subject without reason. • D. one/he → the tag "shouldn't he?" does not match the formal one used earlier. It is inconsistent.

Answer: A (one/one)

Tip: In "agreement of pronouns" questions, keep the pronoun consistent from start to finish. If the sentence starts with one, keep using one. Also remember that the question tag must repeat the subject of the main clause.