* Choose the word whose mainstressed syllable 9. A. extinction B. endanger 10. A. wildlife B. effort 11. A. summarize 12. A. decide 13. A. entertainment 14. A. swallow B. establish B. increase B. information B. subject washu is different from the rest. C. habitat C. forest C. awareness C. digest C. C. panda difficulty D. walked D. commercial D. extinct D. existence D. wetlands D. understanding D. bamboo