题目

根据短文内容和所给汉语提示，写出短文空白处各单词的正确形式，每空限填一词。 Last Saturday, our teacher asked us to write a report about    1  (污染).Before writing, I must    2  (准备)some notes for the report, so I wanted to take some photos for it, I live in the   3  (乡下) ,and it’s    4  (晴朗的)，so I decided to go to the city by bike. On a    5  (拥挤的)street in the city people    6  (扔) rubbish here and there. The people in the shops played music   7  (大声地). The    8  (噪音)made me mad.叶片中含叶绿体最多的是（　　）A．表皮细胞B．保卫细胞C．海绵组织D．栅栏组织