1. 选词填空

A. threat        B. recall        C. extinct       D. pecking    E. definitely F. emerge      G. typically      H. essential     J. definitely    K. retire

1. （1） As they must also sprint over short distances, speed is  .
3. （2） Herbalism had become an all but  skill in the Western world.
5. （3） Some couples see single women as a  to their relationships.
7. （4） , the Norwegians were on the mountain two hours before anyone else.
9. （5） I'm  going to get in touch with these people.
11. （6） He had a good memory, and total  of her spoken words.
13. （7） She then  from the courthouse to thank her supporters.
15. （8） It was winter and the sparrows were  at whatever they could find.
17. （9） I'm going to get in touch with these people.
19. （10） I have decided to from Formula One racing at the end of the season.