57. Though this is s__________ to that, there is some difference between them.

　第一节：单词拼写(共10小题，每题1分，满分10分)

56.I saw him h________ towards the door without a jacket on when I looked up.

15.As the train was to pull out, her husband came running along and climbed _________.

A. abroad　　　　 B. broad　　　　 C. aboard　　　　 D. board

14. He is ______ to attend the meeting.

　A. likely　　　　　 B. possible　　　 C. probably　　　 D, possibly