Do you know why there is a little angel on the top of the Christmas tree? One particular Christmas season a long time ago, Santa was ______ his usual trip. But there were _____ everywhere. Four of his elves(小精灵) got _____, and the trainee(学徒工) elves did not produce the toys as fast as the ______ ones, so Santa was beginning to feel the pressure of being behind _____. Then Mrs. Claus told Santa that her mom was coming to visit; this _____ Santa even more. When he went to ride the deer, he found that three of them were about to give birth and that two had ______ the fence and were out—heaven knows where. Then when he began to load the sled(雪橇), one of the boards _____ and the toy bag fell to the ground and the toys were everywhere. So, _____, Santa went into the house for a cup of coffee and a little wine. When he went to the ______, he discovered that the elves had ______ the wine and there was nothing to_______. In his frustration, he ______ dropped the coffeepot and it broke into thousands of little pieces all over the kitchen _____. He went to get the broom and found that mice had _____ the straw which it was made of. Just then the doorbell _____ and Santa cursed(咒骂) on his way to the door. He _____ the door and there was a little angel with a big Christmas ______. Smiling, the angel said, very _____,”Merry Christmas, Santa. Isn’t it just a lovely day? I have a beautiful tree for you. Where would you like me to put it?” This cheered Santa up. _____ began the tradition of the little angel on the top of the tree.