a. A present was bought for my mom
My mom was bought a present.
b. Their new house was shown to us
We were shown their new house
c. Poems were written for children
His children were writtwn some poems
d. High salaries were promised to his employees
Their employees were peomised high salaries
e. We were taught modal verbs
The modal verbs were taught to us
f. Stories were read to me
I was read stories
g. A song was sung to me
We were singing a song
h. An Oxford dictionary was given to me
I was given an Oxford dictionary
i. A fairy tale was told to you
We were telling you a fairy tale