I. Choose the word whose underlined part is pronounced differently from that of the others in each group.
1. A. shake B. scatter C. trap D. collapse ( gạch chân chữ a )
2. A. healthy B. thermal C. northern D. earth ( gạch chân chữ th )
3. A. volcano B. forest C. tornado D. ghost ( gạch chân chữ o )
II. Choose the word whose main stressed syllable is placed differently from that of the others in each group.
4. A. beautiful B. factory C. animal D. pollution
5. A. atmosphere B. poisonous C. polluted D. telephon