One time when I was watching tv..
When I was sick,...
One time in gym....
I was sad when...
One story I know about my dad/grandpa/uncle, is that one time when...
Last weekend....
One time when I heard a strange noise...
When I was in kindergarten
Before I knew how to read...
Last time it snowed....
One Halloween....
When I was 3...
One day at recess, ...
I was so mad when...
One time when I fell down,...
Last year,...
About 5 years ago...
One time at a store....
One time when I was very young,
Last night at dinner,..
One time in the library....
Once when my ____ was cooking....
One time when we went to a restaurant...
One time when I was playing outside...
One time at school...
I won something once when...
One time at a party...
The last time I went swimming...
One time I saw a strange thing...
About a hundred years ago...
One day when we didn't have school...
When my mom was a kid....
When I was a baby....
Once I got in trouble when...
One time when I had to clean up my ....
One time when I/we were late for....
One time in art class...
Something that was difficult for me,...
On my last birthday....
One time my teacher...
At bedtime last night...
I was so happy when...
One time my friend...
Once when I went to the zoo/farm/museum....
Last Christmas...
A long time ago....
Way back when dinosaurs lived,...
One time there was a really loud noise.....
One of my happiest memories ...
One time when I was riding a bike...
I was so scared once when...
Once when it was super hot outside,
I was proud of myself when
One time my grandma....
One time I saw a pet (in person/on tv/on youtube) ...
When I woke up this morning,...
The last time I rode in a bus....
One time when I saw Santa..
Last summer, we...