“……朋友一生一起走，那些日子不再有，一句话，一辈子，一生情，一杯酒……”一曲《朋友》让许多人感慨万千，我们每个人都离不开朋友。下列关于朋友的说法正确的是（    ）

吃饭时不要大声说笑，以免（  ）来不及盖住喉口，食物误入气管引起剧烈咳嗽．

   I came to Australia last year and I  ____   (落下) in love with it. I can see the ____  （明亮的）sunshine everywhere. At the beginning of this ____  (学期), I couldn't understand the teacher in class. Her English was quite different from what I'd heard in class at home. I;m____(幸运的) enough because my classmates are really friendly and helpful . It's____  (令人惊讶的) that I got an A last week. My science teacher is ____（也）good. She said that I was____ （勤勉的）. I dedided to work harder and get good ____（成绩）.After class I always play soccer with ____  (他们).  This is a great ____ （机会）for me to study in Australia .

$2\sqrt{75}-3\sqrt{27}+\sqrt{3}$的结果是____.$$

比一比，组成词语。

嘶____      倾____      卷____       凑____

撕____      顷____      圈____       揍____