handle choose

unicode-speech/index2.md

@@ -34,7 +34,7 @@ hr.sp {height:.1em;padding:0;margin:0}
 {%- if f.choose -%}
 {%- for c in f.choose  -%}
 {%- unless forloop.first %}<br/>{% endunless%}
-{{c}}
+xxx{{c}}yyy
 {%- endfor -%}
 {%- endif -%}