Am 09.01.2014 um 16:36 schrieb Otared Kavian <otared@gmail.com>:

> 
> On 9 janv. 2014, at 15:48, Jaroslav Hajtmar <hajtmar@gyza.cz> wrote:
> 
>> Hello Otared.
>> I will throw this one... Thanx.
>> 
>> Once I was using exercise-answer package for LaTeX.
>> Is there anything like this to use in ConTeXt?
>> 
>> Thanx
>> Jaroslav Hajtmar
> 
> Hello Jaroslav,
> 
> I have something like the following which was given to me by Hans a long time ago: unfortunately for some reason this does not work anymore with ConTeXt mkiv, but it is quite fine with mkii:

Add \keepblocks[question].

Wolfgang