我要去美国旅游，有几句中文需翻译成英文。

I'm Chinese, I'm from Shanghai China.
Is credit card availble here? Can I use credicard here?
Excuse me, may I ask where is the washroom.
How to go to the parking lot?
May I change some coins please?

1. I am Chinese and from Shanghai,China

2. Can I pay by credit card?

3. Where is the washing room please?

4. How could I get the parking area?

5. Do you have small change?
   

1. I'm from Shanghai, China.

2. Can I pay by credit card?

3. Where is the washroom please?

4. How can I get to the parking lot?

5. Can I get some change?