Choose the correct answer

When water.....,it.....from a liquid to a gas.
A.boil,changes.   B.boils,change.   C.boils,changes 
My father .....his hobby with me.He teaches me how to grow and take care of the flowers in our garden on Sundays.
A.share.      B.shares.   C.sharing
.......your mother......doing yoga?
A.Do,enjoy.    B.does,enjoys.      C.does,enjoy