Choose the word whose underlined part is pronounced differently from that of the other words in each group

Ex1. Choose the word whose underlined part is pronounced differently from that of
the other words in each group
1. a. fun b. sun c. bury d. under
2. a. cold b. circus c. call d. count

Ex2. Pick out the word that has the stress pattern different from that of the other
words.
1. a. national b. engineer b. figure d. scientist
2. a. social b. electric b. contain d. important