1、Half an hour had gone by,but the last bus didn't come .so we went home on foot.

2、Marry looks worried about the Chinese test,because she hasn't learned the passage by heart .  3、 As the basketball match has been postponed,we may as well visit the museum  .  4、 He stayed with his parents in Australia all the way through World War Ⅱ.

5、 Since  I  graduated form Nanjing  University  in  1985 , I  have kind of lost touch with my classmates.