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: 'many people flying kites in front of the white house in washington dc'. Reverse all words of length '4' in the given sentence.
Example Output: ynam people flying kites in front of the white house in washington dc

Example Input: Sentence: 'a backyard with a chair covered in snow'. Reverse all words of length '4' in the given sentence.
Example Output: a backyard htiw a chair covered in wons

Example Input: Sentence: 'a laptop computer and a dog sitting on a bed'. Reverse all words of length '8' in the given sentence.
Example Output:
a laptop retupmoc and a dog sitting on a bed