Mike always said that he had many friends at school. But his1 didn't think so. "Mike, I don't think you have as many friends as you think. I'm sure2 of them are not true friends. If I'm3 , I'll buy you a big bag of chips. "
"OK, but4 can I know they are true friends or not?"
"Well, here is a special5 . You can't see it. But if you take it to school and6 it successfully（成功地），you＇ll find the magic（魔力）and know who7 true friends are. "
Mike took the chair to school. He asked all his friends to stand around and he stood in the8 with the chair. He said, "9 move. I'll show you something interesting. "
Then Mike tried sitting on the chair. Of course, he10 down. Everyone had a good laugh. Luckily, he didn't11 himself. Mike made another try. But again，he failed（失败）. Mike kept trying, and kept falling, until,12 , he tried again and didn't fall.
Looking around, Mike smiled happily. He saw Judy, Lucas and Diana, 13 of his best friends holding（抱住）him up，14 he didn't fall. Mike finally knew about the magic his grandfather talked about. Also, Judy, Lucas and Diana became his15 for life.
