综合填空。
根据短文大意和语境选择方框内的单词，并用其正确的形式填入空白处（每空填一词），使补全
后的短文意思通顺，语法正确，结构完整。
|
minute with big put up water |
Yesterday afternoon, the students were having a chemistry class. Miss. Lee was telling the children what
1_____ was like. She asked her students, "Could you say something more about water?" No one answered
for a few 2_____. Miss. Lee asked again, "Why don't you answer my questions?"
Just then a boy 3_____ his hand and said, "Miss. Lee, you told us that water has no colors and no smells.
But where to find such water? The water in the river behind my house is always black and it has a bad smell."
"Yeah, that's true!" Most of the children agreed 4_____ him.
"I'm sorry, children," said the teacher. "Our water is getting dirtier and dirtier. That's really a 5_____
problem. What should we do to make the river clean?"