<select name="Activity" id="myActivityCombo">
<?php
$sql = "SELECT Status FROM Activity";
$rs = mysql_query($sql) or trigger_error(mysql_error() . " unable to run query.");
echo "<option></option>";
while($row = mysql_fetch_assoc($rs))
{
  echo "<option value=\"".$row['Activity']."\">".$row['Status']."</option>\n  ";
}
?>
</select>