_____ milk
an
some
a
I don't go the the park. (often)
I don't often go to the park.
He's tired. (sometimes)
He's sometimes tired.
Mary and Kate play tennis. (never)
Mary and Kate never play tennis.
She goes to bed _____ 9 o'clock.
at
in
on
River F / longest.
River F is the longest.
Building H / tallest.
Building H is the tallest.
_____ apple
some
a
an
_____ banana
an
a
some
My birthday is _____ October.
on
in
at
We don't go to school _____ Sunday.
on
at
in
Mountain A / higher / mountain B.
Mountain A is higher than mountain B.