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 child is inside standing on a skateboard'. Reverse all words of length '6' in the given sentence.
Example Output: a child is edisni standing on a skateboard

Example Input: Sentence: 'a happy white man with sunglasses on a boat'. Reverse all words of length '1' in the given sentence.
Example Output: a happy white man with sunglasses on a boat

Example Input: Sentence: 'a tabby cat sitting ion the floor next to some bottles'. Reverse all words of length '2' in the given sentence.
Example Output:
a tabby cat sitting ion the floor next ot some bottles