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: 'this cat is sitting on a porch near a tire'. Reverse all words of length '7' in the given sentence.
Example Output: this cat is gnittis on a porch near a tire

Example Input: Sentence: 'a bathroom with two doors and both of them are ajar'. Reverse all words of length '4' in the given sentence.
Example Output: a bathroom htiw two doors and htob of meht are raja

Example Input: Sentence: 'an old bus parks in a parking lot with other cars and bus'. Reverse all words of length '7' in the given sentence.
Example Output:
an old bus parks in a gnikrap lot with other cars and bus