Real English Seven-I am on it!

I couldn't believe my eyes when I turned on the news last night.
A meteor!!
I thought I was watching a movie!!

The headlines this morning: "Meteor shower injures hundreds in central Russia"!!
What would you do if you were caught in a meteor shower?
If me, I would take cover or run for my life!

To change the subject, a famous interior designer told me today, "Your new arrangement in the classroom is great!"  That compliment, coming from her, really meant a lot to me.

Last weekend, I was in "re-arrange mode."  On Saturday night I rearranged the classroom to make the one-to-one lessons with the computer more comfortable, enjoyable, and efficient.  Then on Sunday, focused my efforts on our apartment.
It all began a few weeks ago when Kyoko said to me, "Our place is too small and cluttered.  We need more space!  Clean up your stuff!"
I said, "Yes sir, Boss. I am on it!!"

After thinking about how to rearrange my apartment for about a week or so, last Sunday I took action.  It took about 5 hours to clean up, move some furniture around, and throw some stuff away, but it was worth it!
What a difference a little time and effort makes!
To say it looks like a new apartment would be an exaggeration, but it does look much better because I created A LOT OF space.  I was satisfied with the final product and ,ore importantly, so was the Boss!  When she saw the "new room", I asked her, "So what do you think?" She replied, "Not too shabby!!"
I don't want to toot my own horn or anything, but to be honest, I did a stellar job!!

"on it" is used in many expressions.
Do you understand the below?

1.  Count on it.
2.  Get on it!
3.  Sleep on it.
4.  Don't bet on it.
5.  I'm working on it.
6.  Let's shake on it.
7.  Keep a lid on it.
8.  Keep an eye on it.
9.  Let me in on it.
10. Pull the plug on it.