giúp mình với cíu cíu

1. A (invention) - B (advantage) - Both have the stress on the second syllable; however, 'invention' has stress on the last syllable.
2. A (valuable) - B (recommend) - 'Valuable' has stress on the first syllable while 'recommend' has stress on the third syllable.
3. A (control) - B (model) - 'Control' has stress on the second syllable ('con-TROL') while 'model' has it on the first ('MOD-el').
4. A (actually) - B (following) - 'Actually' has stress on the first syllable, while 'following' has stress on the first as well, making them similar.
5. A (smartphone) - B (result) - 'Smartphone' has stress on the first syllable while 'result' may lead to less clarity regarding syllable stress distinctions.
6. A (research) - B (modern) - Both have different stress patterns too; however, the division distinctly shows 'research' has variable stress in US/UK forms.
7. A (however) - B (example) - The stress on 'how-EV-er' contrasts with 'ex-AM-ple.'
8. A (learner) - B (device) - Here, 'learner' carries stress on the first while 'device' is stressed differently.
9. A (complete) - B (question) - Almost the same as earlier, showing 'com-PLETE' versus 'QUES-tion' differences.
10. A (sentence) - B (monthly) - 'Sentence' falls first syllable while 'monthly' exhibits another pattern.

Notes on stress patterns: In English phonetics, stress can significantly change the pronunciation and meaning of words. Stress typically falls on either the first or second syllables depending on the word structure (compound, single-syllable, etc.). Words that have a different stress pattern from their peers may lead to confusion in spoken communication. Understanding these differences is crucial for proper pronunciation and comprehension while learning English.