**Ex1:** Choose the word in each group that has the underlined part pronounced differently from the rest.

1. **D. how** (the "ow" sound in "how" is different from the silent "h" in the others)
2. **B. bridge** (the short "i" sound in "bridge" differs from the long "i" in "empire," "liberty," and "pyramid")
3. **D. ancient** (the "a" in "ancient" is pronounced differently than the long "a" sounds in the others)
4. **C. science** (the "ci" in "science" has a different pronunciation compared to the others)
5. **D. worked** (the other words have a suffix that creates a vowel sound similar to "ed" pronounced as /d/ or /t/, while "worked" has a distinctly pronounced /t/)
6. **A. flow** (the "ow" in "flow" has a different sound than the "ou" in the others)

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**Ex2:** From each number, pick out one word which has the stress on the second syllable:

1. **B. upset** (the stress is on the second syllable: up-**SET**)
2. **C. volcano** (the stress is on the second syllable: vol-**CA**-no)
3. **C. microwave** (the stress is on the second syllable: mi-**CRO**-wave)
4. **A. powder** (the stress is on the second syllable: **POW**-der)

If you have any further questions or need additional assistance, feel free to ask!