1 . All roads were _____________(堵塞) by the heavy snowfall.(根据汉语提示单词拼写)

2 . I recommend that you talk to your friend about his _________ (behave). （所给词的适当形式填空）

3 . What you told me about your country ________ (扩大) my horizons and aroused my interest in foreign culture. (根据汉语提示单词拼写）

4 . The young man disappeared into the crowd ________ I could express my thanks to him. (用适当的词填空)

5 . This fruit - picking experience ________ (受益) us a lot and taught us the importance of working. （根据汉语提示单词拼写）

6 . Keeping a ________ (平衡的) diet is of great importance, especially for teens who are growing up. （根据汉语提示单词拼写）

7 . As far as I'm concerned, students should be encouraged to develop good habits and better ________ (举动，表现) themselves. （根据汉语提示单词拼写）

9 . Olympic Airways Flight 172 to Istanbul is now______(登机) at Gate No. 37.

10 . Heavy smoking makes him______(breath).