题目内容：

One day a 1.old man came to the palace and the king 2.him 3. a game. The king4. the old man, “You can have any 5. if you win the game.”

The old man said, “ If I win the game, I’d like one 6. of rice for the 7. square of the chessboard, two for the second, four for the third, and then 8. the 9. for each of the 10. of the squares.”