根据句意，用方框中所给单词的适当形式填空。

sleep, nine, win, potato, play

（1）I often hear him the violin in the next room.

（2）Teachers' Day comes in the month of the year.

（3）The teacher was very angry because Jim fell in class.

（4）—Excuse me, what's the price of these ? —Fiveyuana kilo.

（5）We all believe our monitor will be the of the English Speech Contest.