题目

下列方法中能使盐水中浮起的马铃薯下沉的是( )。 A . 加盐 B . 加清水 C . 将马铃薯与塑料瓶绑在一起 答案：B根据短文内容和首字母提示完成所缺单词。 George Ellet had a bright silver dollar for a New-year gift. He thought of all the fine things he might buy with it. The ground was all covered with snow and e 1.   looked beautiful. So George p 2.   on his hat, and ran into the street. As he went a  3.   the street, he met some boys throwing snowballs. George soon joined t  4.  . He sent a snowball at James Mason, but it missed him, and broke a window on the o   5.   side of the street. George was so frightened that he ran off as fast as he c   6.  . S 7.  , George stopped because he was very sorry for what he had done. He said to h 8. , “I ought to go back, and pay for the glass I broke with my s 9.. At last he said, “It was w 10.  to break the window, though I did not mean to do it. I will go and pay for it. If it takes all my money, I will try not to be sorry.”