Help!

Hello every one,

I wish someone can help me to correct the following sentences, in brackets means I'm not sure whether it's correct or not. If there is a better way to say what I'm trying to say, please froget about mine and write the new ones.

THANK YOU VERY MUCH.

Are these correct:

-I told him to get out.

-I got him out the room. -no altercation happened; I didn't kick him out-

-(Take/get) it out of your pocket.

-Someone was drowning: (I got / took) him out the water.

-Take the book out (do you need (from)?) the box.

-Take the label off the bottle.

How much is it? 1(Half a dollar). 2-(Dollar and a half).

-I want half a kilo of ground beef.

-What do you have going on today/tomorrow? (I'm asking to see whether the person is available to go out)

-I am sitting in the back of (the) class. The teacher would say to me: move up forward (right? what is the opposite? The teacher wants me to sit in the back.).

-where are you? (I'm at (without the, right?)university (does it mean that I'm a student) and ( I'm in the university (does it mean that I'm a visitor???)

-Does the letter need to be replied (to?).

-I'm (on) th second floor and I want to ask my friend to (go down to sit (in) th lot outside the building, how can you ask him to do so?

-I am very interested(in enrolling in) your university.

Is there any difference between round and around as in: wrap the towel round/around your arm.