把at,in,on,for,of填入下以的.....上
1)......patrol
2)......all levels
3)a day.....the life of
4)under cover.......darkness
5)to look.....evidence
6)years.......training
7)to speak......public
8)to be late.....work
9)......the force
10)to prepare.......work
11)the position.....ski instructor
12)to have experience.........doing sth
13)to come........an interview
14)........general