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

1.Indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions
A.museum
B.custom
C.union
D.useful
2.Indicate the correct answer to each of the following questions 
Lots of people come back to___________ with their families during Tet holiday.
A.reflect
B.take
C.break
D.reunite
3.Indicate the correct answer to each of the following questions 
Almost every Vietnamese household sets an altar to ___________ their ancestors.
A.follow
B.worship
C.pass down
D.wrap