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: 'pineapple and hot dog skewers are shown as appetizers'. Reverse all words of length '9' in the given sentence.
Example Output: elppaenip and hot dog skewers are shown as appetizers

Example Input: Sentence: 'three traffic lights on the same pole one is lit red while the other two are green'. Reverse all words of length '2' in the given sentence.
Example Output: three traffic lights no the same pole one si lit red while the other two are green

Example Input: Sentence: 'an old traditional pirate ship in modern city'. Reverse all words of length '3' in the given sentence.
Example Output:
an dlo traditional pirate ship in modern city