In this task, you need to reverse all words of a given length in the sentence. The number of letters in a word determine its length. For example, the length of the word "apple" is 5.

Example Input: Sentence: 'a clock tower in between two leafless trees'. Reverse all words of length '3' in the given sentence.
Example Output: a clock tower in between owt leafless trees

Example Input: Sentence: 'a bear in a field next to a pond'. Reverse all words of length '5' in the given sentence.
Example Output: a bear in a dleif next to a pond

Example Input: Sentence: 'a zebra in a zoo enclosure with trees and rocks'. Reverse all words of length '2' in the given sentence.
Example Output:
a zebra ni a zoo enclosure with trees and rocks