Confused over how to use Preposition In, On and At?

1. Hi, Lucy! What
happened?
Hey Max, I’m
confused.

2. Confused? Why?
My friends always
make fun of me.

3. But, why?
Actually, I don’t
know how should I
use In, On and At
correctly.

4. That’s ok! I can help
you in this.
Really!

5. Yeah!
That’s cool!

6. Look! Those kittens
are IN the cup.
But, why they are
not ON the cup?

7. Because the cup has
no flat surface at its
top. And, the kittens
are moved in.
That means, if the
surface is flat and
something touches
it, I’ll use ON.

8. Absolutely!
And, if you put
something inside,
that would be IN.

9. You understood it
right.
What if I talk about
the day, date or
time?

10. Good question, Lucy.
You should use ON for
any day, like Sunday,
and date, like 25th
January.
Is it correct to say-
You can come to my
home On January?

11. No! If you talk about a
month, season, century
or period of time, you
ought to use IN.
What about AT?

12. If you say specifically about a
date, like 12th Feb, or time, like
at night or 12 o’clock, or
occasion, like Christmas, you
ought to use AT.
That’s great, Max!
Now, I’ll use them
correctly like my
friends.