q1:how long did you make decision to buy this car?
the answer could be 1 minite,8hour, 3day, 2 weeks,2 months,1.5 year......
can ls design 1 question as to those various answers?

You could use a multiple-short-text question with an Autocomplete workaround - www.limesurvey.org/manual/Workarounds:_M...r_LimeSurvey_2.05.2B

thanks for your kindly reply!
it seemed to use Autocomplete widget,not workable in ls2.0
as 2.05 don't support >= in EM,hard to update.