To choose the word whose main stressed syllable is placed differently from that of the other words in each group, we need to identify the stress patterns.

1. A. greenhouse B. compass C. surround D. classmate
- Greenhouse, compass, and classmate all have the stress on the first syllable.
- Surround has the stress on the second syllable.
**Answer: C. surround**

2. A. boarding B. judo C. pocket D. replace
- Boarding, judo, and pocket all have the stress on the first syllable.
- Replace has the stress on the second syllable.
**Answer: D. replace**

3. A. delay B. swimming C. money D. compass
- Delay has the stress on the second syllable.
- Swimming, money, and compass all have the stress on the first syllable.
**Answer: A. delay**

4. A. creative B. interview C. equipment D. remember
- Creative and remember have the stress on the second syllable.
- Interview and equipment have the stress on the first syllable.
**Answer: A. creative**

5. A. overseas B. beautiful C. difficult D. miracle
- Overseas has the stress on the third syllable.
- Beautiful, difficult, and miracle all have the stress on the first syllable.
**Answer: A. overseas**