1.What is clean when it is black and dirty when it is white?
2.Which letter is a drink?
3.Teachers write on me with chalk. I can't talk .What am I?957Please respect copyright.ＰＥＮＡＮＡS0ZYEXZbPk
4.When do 2 and 2 make more than 4?957Please respect copyright.ＰＥＮＡＮＡSMXHCDS5R2
957Please respect copyright.ＰＥＮＡＮＡaymv7X8tbD
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ns3.17.9.170da2
