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 man sitting in a boat with a tv'. Reverse all words of length '7' in the given sentence.
Example Output: a man gnittis in a boat with a tv

Example Input: Sentence: 'a wall decorated with fans and other art work'. Reverse all words of length '1' in the given sentence.
Example Output: a wall decorated with fans and other art work

Example Input: Sentence: 'a street a cloudy sky some buildings and big ben'. Reverse all words of length '4' in the given sentence.
Example Output:
a street a cloudy sky emos buildings and big ben