Question

Change the sentence “They have completed the work” into an interrogative sentence.

• A. Do they completed the work?
• B. Have they completed the work?
• C. Did they completes the work?
• D. Did they completed the work?

Hint:

In present perfect interrogatives, place \textit{have/has} before the subject without changing the past participle form.

Answer 1

The Correct Option is B

To change the sentence "They have completed the work" into an interrogative sentence, we need to follow the rules of forming questions in English grammar.

Step 1: Identify the tense of the given sentence.

The sentence "They have completed the work" is in the present perfect tense. In present perfect tense, questions are usually formed using the auxiliary verb "have" or "has."

Step 2: Invert the subject and the auxiliary verb to form an interrogative sentence.

In the given sentence, the auxiliary verb is "have" and the subject is "they."

Therefore, the interrogative form of the sentence is: "Have they completed the work?"

Explanation of Options:

• Option 1: "Do they completed the work?" - This is incorrect because "do" is not used with past participle forms like "completed."
• Option 2: "Have they completed the work?" - This is the correct transformation into an interrogative sentence using the present perfect tense.
• Option 3: "Did they completes the work?" - This is incorrect. "Did" is used for past tense, and combining it with "completes" is grammatically incorrect.
• Option 4: "Did they completed the work?" - Also incorrect. "Did" is used with base forms of verbs, not past participles like "completed."

Therefore, the correct answer is: Have they completed the work?