Choose the word whose underlined part differs from the other three in pronunciation in each of the following questions

I/ PRONUNCIATION A. Choose the word whose underlined part differs from the other three in pronunciation in each of the following questions. 1. A. talk B. walk C. should D. simple 2. A. listen B. costume C. pasta D. plastic B. Choose the word that differs from the other three in the position of the main stress in each of the following questions. 3. A. protect B. public C. purpose D. people 4. A. direction B. useful C. hospital D. garden