Testing dropdown List box items in Web application

[raoponnapalli001]

I am new to QTP and working on Financial Application; the application is having 4 dropdown list box items and each drop down list box having 10 items. I need to select different combinations to test the application i.e
1. 1st dropdown list item of with all 1st dropdown list boxes items
2. 1st dropdown list item with 2nd List item of 2 dropdown list box and 1st list item of 3rd and 4th dropdown list items.
3. 1st dropdown list item with 3rd List item of 2 dropdown list box and 1st list item of 3rd and 4th dropdown list items
In the same way I need to verify all the combinations.
I can do by using data driven Tests with QTP.
Can anybody help me with VB SCRIPT please.