english riddle(1)what helps you keep your teeth together?

急需English riddle给一个English riddle english riddle(1)what helps you keep your teeth together? why is ten afraid of seven?an english riddle riddle &puzzledifference? Riddle是什么意思 riddle是什么意思 英语riddle大家快来猜》》》》》》An English riddle .In English what word starts with T ends with T and has T in it ,and it's a household object and most people will have it in their home. 我想要9个英文谜语 English Riddle我要9个英文谜语 English Riddle要是英文的.最好也有中文解释要分3个级别:(每样三题就可以) easy容易; medium中等; Difficul困难; 麻烦! Wha t can ming hear a选择1bicycle2 bag3pen Riddle汉语意思 own riddle是什么意思 Riddle 怎么读? THE ASSASSINS RIDDLE怎么样 riddle怎么读 riddle的翻译 riddle怎么读 an English riddle,What can go up a chimney down,but can not go down a chimney up.英语谜语，不是翻译（再说我也知道意思） (1/2)[紧急提问] 《what are words》中 How every single promise I keep Cause wha