In showanswers of millionaire have to show only question with single answer

showanswers.php

@@ -222,7 +222,12 @@ function game_showanswers_question( $game, $context) {
 
     $showcategories = ($game->gamekind == 'bookquiz');
     $order = ($showcategories ? 'category,questiontext' : 'questiontext');
-    game_showanswers_question_select( $game, '{question} q', $select, '*', $order, $showcategories, $game->course, $context);
+    $table = '{question} q';
+    if ($game->gamekind == 'millionaire') {
+        $select .= " AND qtype='multichoice' AND qmo.single=1 AND qmo.questionid=q.id";
+        $table = '{question} q, {qtype_multichoice_options} qmo';
+    }
+    game_showanswers_question_select( $game, $table, $select, '*', $order, $showcategories, $game->course, $context);
 }
 
 /**
@@ -330,7 +335,7 @@ function game_showanswers_question_select( $game, $table, $select, $fields, $ord
         echo '<td>';
         echo "<a title=\"Edit\" ".
             "href=\"{$CFG->wwwroot}/question/question.php?inpopup=1&amp;id=$question->id&courseid=$courseid\" target=\"_blank\">";
-        echo "<img src=\"".$OUTPUT->pix_url('t/edit')."\" alt=\"Edit\" /></a> ";
+        echo "<img src=\"".game_pix_url('t/edit')."\" alt=\"Edit\" /></a> ";
 
         echo game_filterquestion(str_replace( array( "\'", '\"'), array( "'", '"'),
             $question->questiontext), $question->id, $context->id, $game->course);

version.php

@@ -35,10 +35,10 @@ if (!isset( $plugin)) {
 }
 
 $plugin->component = 'mod_game';  // Full name of the plugin (used for diagnostics).
-$plugin->version   = 2017062801;  // The current module version (Date: YYYYMMDDXX).
+$plugin->version   = 2017062901;  // The current module version (Date: YYYYMMDDXX).
 $plugin->requires  = 2010112400;  // Requires Moodle 2.0.
 $plugin->cron      = 0;           // Period for cron to check this module (secs).
-$plugin->release   = '2017-06-28';
+$plugin->release   = '2017-06-29';
 $plugin->maturity = MATURITY_STABLE;
 
 if ($useplugin != 2) {