How to erase unncessary blank line ?

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2 years 10 months ago #108041 by mrli999
The survey:
Question a
Question 1
Question 2
...
Question 10
Question 11
...
Question 20



when question a=1 the survey will display question 1 question 10; when question a=2, the survey will display question 11 to question 20.

When question a=2, there are many blank lines displayed before question 11. How to erase those blank lines?

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