|  | 21. | They are used to file the surfaces of acute internal angles. 
 
 | 
|  | 22. | And his hunger to realize it is more acute than ever. 
 
 | 
|  | 23. | The movement demanded an acute awareness of body movement and breathing. 
 
 | 
|  | 24. | As the aging incumbent, Kohl has the more acute problem. 
 
 | 
|  | 25. | The threat of losing Sierra bighorn populations may be especially acute. 
 
 | 
|  | 26. | Kaitlin had acute lymphocytic leukemia, a doctor told her parents. 
 
 | 
|  | 27. | The splits and silences between the two groups are often acute. 
 
 | 
|  | 28. | Delirium, or acute brain failure, often has organic causes. 
 
 | 
|  | 29. | For African-American girls, the difficulties seemed particularly acute. 
 
 | 
|  | 30. | Instead, he showed his experience and acute attention to detail. 
 
 |