In the unmarked case, within stylistically unmarked contexts and with no focus on any constituent, the question particle used to elicit yes-no answers occurs at the beginning of the clause.  One example from English is "Did Susie skip class?"

<br><br><b>Reference</b><br>
Dryer, Matthew S.. 2008. Position of Polar Question Particles. In Haspelmath et al (2008), chapter 92. Available online at <a href="http://wals.info/feature/92">http://wals.info/feature/92</a href>.

