I/ Pronunciation 4. A. tutor B. ambitious C. institute D. obtain 5. A. professor B. diploma C. localize D. both II/ Stress 1. A. humanitarian B. communication C. education D. incomprehensible 2. A. institute B. university C. calculation D. unscientific 3. A. determine B. professor C. harbor D. another 4. A. private B. interrupt C. physics D. tragic 5. A. exactly B. fully C. receive D. extremely