How do I make Yes/no combo box dependent on another yes/no combo box

[shadowsedge]

I got 3 questions on a form but each is dependent on the previous.

1st question: "Was there a high spot?" -> Yes (new question pops up) No(nothing happens)
2nd question: "Was the high spot FOUND on the map?" (either = next question pops up)
3rd question: "If the high spot was over 50, did you notify the developer? (ends here)

What would be best for this series?
I was thinking combo box or list box but since all 3 are yes/no questions, would a Boolean work?
How do I make them dependent on the previous. (so if they answer no to the 1st, they can skip the next 2)

Or is there a better way? (VBA illiterate here but working on it!)

[ranman256]

maybe:
the tQuestionTbl has
[Q], [QIfY],[Ans], [Ans2]

the question ,and a follow up if yes question.
The form could only show 1 question at a time, since the QIfY would have to be invisible,
if user clicks Y, then QifY is visible,

 SUB Ans_afterupdate()
If ans = "Y" and Not ISNULL(QifY)
   QifY.visible = true
   Ans2.visible  = true
endif
end sub

'remember to reset for every question
in the ON CURRENT event
QifY.visible = false
Ans2.visible = false