根据所给图片完成短文。

     One day, Mr. Li was    1     a book in his office after school when a ball broke the window

and flew in.. The ball    2     him on the head. So he took the ball and came downstairs to see

who threw the ball .He met a boy at the doorway and the boy said that he threw it just now.

The boy said     3    to Mr. Li and Mr. Li praised the boy for his honesty. At last Mr. Li told

the boy to be more careful next time. The boy    4     him and said goodbye to him, running

away    5     the ball.

1._____ 2._____ 3._____ 4._____ 5._____ 

销售有松紧性的商品，需要尺量的，计量时应（）。

A.标记清晰，足尺销售

B.适当放松手劲

C.速度适当、平稳

D.用计量画线的方法按线剪裁