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 road decorated for christmas and trees without leaves'. Reverse all words of length '1' in the given sentence.
Example Output: a road decorated for christmas and trees without leaves

Example Input: Sentence: 'a group of zebras gather at a watering hole'. Reverse all words of length '1' in the given sentence.
Example Output: a group of zebras gather at a watering hole

Example Input: Sentence: 'a young girl looking closely at a laptop'. Reverse all words of length '5' in the given sentence.
Example Output:
a gnuoy girl looking closely at a laptop