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 bird looks around as it sits on a wire'. Reverse all words of length '4' in the given sentence.
Example Output: a drib looks around as it stis on a eriw

Example Input: Sentence: 'an assortment of chinese dinner options are arranged'. Reverse all words of length '8' in the given sentence.
Example Output: an assortment of chinese dinner options are degnarra

Example Input: Sentence: 'batter taking a swing at the ball during baseball game'. Reverse all words of length '6' in the given sentence.
Example Output:
rettab gnikat a swing at the ball gnirud baseball game