I am preparing a new version (v1.975) of the Gapfill question type and here is the change log as
I would like to include a new example question that shows how the core multilang filter can be used with it in the form (Spanish from Google so corrections welcome)
<span lang="es" class="multilang">
<p>Arrastra los verbos en los huecos.</p>
<span lang="en" class="multilang">Drag the verbs into the gaps</span>
<p> The cat [sat] on the mat. The cow [jumped] over the moon.</p>
If people would like to submit the phrase "Drag the verbs into the gaps" in their language and include the lang code (i.e. es for spanish, fr for French) etc I will include it in the example question.