阅读短文，选择适当的单词填空，每词限用一次，其中有两项是多余的。

 During, trip, music, meet, visiting, second, stay, train, air, concert, hard, usual

     The Greenwood Boys are a group of popular singers.  A lot of young people enjoyt heir 1. _______ 

 very much. Now they are 2. _______many parts of the country. Theywill get here tomorrow. 

 This is their 3. _______  time to Beijing. They came here Iast year and many people watched them

play.    They'll come by 4. _______ and most of the fans will 5. _______  them at the station.

Tomorrow evening they'll give a 6. _______   at the Worker's Club.  The Greenwood Boys will

7. _______  here for five days.  8. _______  this time they will give five concerts.  As 9_______,

the police will have a 10. _______ time.  J;hey'll try to keep order(维持秩序).