Question

Complete the sentence with a suitable question tag:
I'm old enough to take care of myself,

• A. am I?
• B. aren't I?
• C. do I?
• D. will I?

Answer 1

Answer: (B)

aren't I?

A question tag is a short question at the end of a statement. It changes a declarative or imperative statement into an interrogative one. They are mainly used to confirm something or encourage a reply from the listener.
The question tag is like a reverse of the sentence, it starts with the verb and ends with the subject. Hence, the question tag that follows a positive statement will be negative, and vice versa. The verb is generally the same as in the sentence, and question tags are formed with auxiliary verbs.
In the given sentence, "I'm" is a contraction of the subject and verb, I am (Am is the present tense form of the auxiliary verb-be). Hence the question tag appropriate to the sentence would be either 'aren't I' or 'am I not', but the former is preferred in most cases. Hence option B is correct. 'Am I' follows a negative sentence, since the given one is positive, option A is incorrect. 'Do I' follows a sentence containing the verb 'don't' and 'will I' follows a sentence containing the verb 'won't'. Since the verb here is 'am', options C and D are incorrect.