The correct answer is **haven't they** (Option 2).
**Comprehensive Derivation:**
The correct answer is "haven't they".
Explanation & Key Takeaways:
• The given sentence is a positive sentence, we need a negative tag question.
• so "haven't they" would be the correct choice.
• The verb "have" in the question matches "have" in the sentence, and "they" matches "they," making it grammatically correct and meaningful.
Therefore, option 2 is correct.
**Option Elimination:**
• **Option 1 (will they)**: Incorrect distractor.
• **Option 2 (haven't they)**: Correct Answer; accurate according to canonical reference.
• **Option 3 (shouldn't they)**: Incorrect distractor.
• **Option 4 (has they)**: Incorrect distractor.
**Exam Trap:**
Be careful of misleading distractors and subtle terminology differences. Verify core properties before selecting your answer.
**Memory Booster:**
Core mnemonic rule: haven't they corresponds to Option (2).
The correct answer is **haven't they** (Option 2).
**Comprehensive Derivation:**
The correct answer is "haven't they".
Explanation & Key Takeaways:
• The given sentence is a positive sentence, we need a negative tag question.
• so "haven't they" would be the correct choice.
• The verb "have" in the question matches "have" in the sentence, and "they" matches "they," making it grammatically correct and meaningful.
Therefore, option 2 is correct.
**Option Elimination:**
• **Option 1 (will they)**: Incorrect distractor.
• **Option 2 (haven't they)**: Correct Answer; accurate according to canonical reference.
• **Option 3 (shouldn't they)**: Incorrect distractor.
• **Option 4 (has they)**: Incorrect distractor.
**Exam Trap:**
Be careful of misleading distractors and subtle terminology differences. Verify core properties before selecting your answer.
**Memory Booster:**
Core mnemonic rule: haven't they corresponds to Option (2).
Be careful of misleading distractors and subtle terminology differences. Verify core properties before selecting your answer.
Be careful of misleading distractors and subtle terminology differences. Verify core properties before selecting your answer.
Core mnemonic rule: haven't they corresponds to Option (2).
Core mnemonic rule: haven't they corresponds to Option (2).
**Option Elimination:**
• **Option 1 (will they)**: Incorrect distractor.
• **Option 2 (haven't they)**: Correct Answer; accurate according to canonical reference.
• **Option 3 (shouldn't they)**: Incorrect distractor.
• **Option 4 (has they)**: Incorrect distractor.
**Option Elimination:**
• **Option 1 (will they)**: Incorrect distractor.
• **Option 2 (haven't they)**: Correct Answer; accurate according to canonical reference.
• **Option 3 (shouldn't they)**: Incorrect distractor.
• **Option 4 (has they)**: Incorrect distractor.