1. 多久一次                           _____________
2. 中学                                  _____________
3. 至于                                  _____________
4. 去踩滑板                           _____________
5. 两周一次                           _____________
6. 去看电影                           _____________
7. 一周三次                           _____________
8. 一月两次                           _____________
9. 一周两三次                       _____________
10. all students                       _____________
11. some students                   _____________
12. no students                       _____________
13. at Green High School         _____________
14. once or twice a week         _____________

1. 集邮_____   2. 下一次_____  3. 要去……_____  4. 不同国家_____   5. 写下，记下_____

1.集邮___    
2.下一次___  
3.要去……____  
4.不同国家___    
5.写下,记下___