How to Handle dynamic QUERY Style key-value parameters in my request url?

Hello Genius,

I got stuck with my soapui project and need your help to have a look, details as below:

Request URL 01: http://www.test.com/path?a=1&p_age=18

Request URL 02: http://www.test.com/path?a=1&p_age=18&p_gender=male

Request URL 03: http://www.test.com/path?a=1&p_age=18&p_gender=male&p_height=180

As you can see, there's dynamic QUERY Style key-value parameters in my request url, and the key is custom defined, it always changed, looks TEMPLATE style parameter didn't any help, is there any good solution for this scenario? Look forward for your response, thanks a lot