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 girl in a wig holding a tennis racket'. Reverse all words of length '3' in the given sentence.
Example Output: a girl in a giw holding a tennis racket

Example Input: Sentence: 'a man is in the air riding a skateboard outside'. Reverse all words of length '2' in the given sentence.
Example Output: a man si ni the air riding a skateboard outside

Example Input: Sentence: 'a stuffed cat placed on a steering wheel'. Reverse all words of length '6' in the given sentence.
Example Output:
a stuffed cat decalp on a steering wheel