def gen_select_add(sig_dic):
    """
    Adding for select control.
    :param sig_dic:
        html_media_type = {
        'en': 'tag_media_type',
        'zh': 'Media_type',
        'dic': {1: 'Document', 2: 'Data', 3: 'Program'},
        'type': 'select',
        }
    """
    option_str = ''
    for key, val in sig_dic['dic'].items():
        tmp_str = '<option value="{0}">{1}</option>'.format(key, val)
        option_str += tmp_str
    return (
        """<div class="form-group">
    <label for="{sig_en}" class="col-sm-2 control-label"><span>
    <a class="glyphicon glyphicon-star" style="color: red;font-size: xx-small;"></a>
    {sig_zh}</span></label>
    <div class="col-sm-10"><select id="{sig_en}" name="{sig_en}" class="form-control">
    {option_str}</select></div></div>
    """
        .format(sig_en=sig_dic['en'], sig_zh=sig_dic['zh'], option_str=
        option_str))
