One possible version:
My favorite Chinese traditional festival
is the IVIid-Autumn Day. On this day，
we usually come back home early and
have a big dinner. After dinner，we go
outside and admire the full moon.
The moon is bright and round.
Everything looks peaceful under the moon.
Eating mooncakes is my favorite part.
The mooncakes are round，too. They are
delicious.
In short，the IVIid-Autumn Day is a special day for families to get together and share the happiness and love.l always have a good time on that day.