You have to pay the maintenance fee every month for 50,000 won. You should also pay the gas fee. If you use a lot of gas, you have to pay more money. You have to pay the electricity fee as well. You have to put waste into a waste plastic bag. However, the items which can be recycled should be into a recyclable plastic bag. Outside, you can find recyclable plastic bags, so you should put recyclable items into each recyclable plastic bag according to its kind.

You have to write down the 4 digit number of the gas meter on the sheet of paper on the wall leftside of the entrance door. The receips of the electricity bill and the gas bill will be delivered monthly. So according to the notice, you have to pay the bills.
If you break the things down, you have to pay for them:a TV, a prop for the TV, a fridge, an air conditioner, a gas stove, a washing machine, a bed, a table ,chairs, a computer desk, a fire extinguisher, a gas boiler, laminated paper.

(Would you check the expressions? correct errors, please.)

should be into a recyclable plastic = either should be in a recyclable...OR should be put into a recyclable...

Sra

Here are some corrections to the expressions in your text:

1. "You have to pay the maintenance fee every month for 50,000 won."
- Correction: "You have to pay a monthly maintenance fee of 50,000 won."

2. "You should also pay the gas fee."
- Correction: "You also need to pay for gas usage."

3. "If you use a lot of gas, you have to pay more money."
- Correction: "If you consume a large amount of gas, you will have to pay an additional fee."

4. "You have to pay the electricity fee as well."
- Correction: "You also have to pay for electricity usage."

5. "You have to put waste into a waste plastic bag."
- Correction: "You need to dispose of waste in a plastic bag designated for general waste."

6. "However, the items which can be recycled should be into a recyclable plastic bag."
- Correction: "Items that are recyclable should be placed in a separate plastic bag designated for recycling."

7. "Outside, you can find recyclable plastic bags, so you should put recyclable items into each recyclable plastic bag according to its kind."
- Correction: "You can find recyclable plastic bags outside, so you should sort recyclable items into separate bags based on their type."

8. "You have to write down the 4 digit number of the gas meter on the sheet of paper on the wall leftside of the entrance door."
- Correction: "You need to record the 4-digit number displayed on the gas meter on the sheet of paper located on the left side of the entrance door."

9. "The receips of the electricity bill and the gas bill will be delivered monthly."
- Correction: "The receipts for the electricity bill and gas bill will be delivered monthly."

10. "If you break the things down, you have to pay for them."
- Correction: "If you damage any of the listed items, you will be responsible for the repair or replacement costs."

I hope the corrections above clarify the expressions in your text. Let me know if you have any further questions or need additional assistance.