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: 'the blue pair of scissors is next to cut pieces of plastic'. Reverse all words of length '8' in the given sentence.
Example Output: the blue pair of srossics is next to cut pieces of plastic

Example Input: Sentence: 'a tall clock tower with a sky background'. Reverse all words of length '10' in the given sentence.
Example Output: a tall clock tower with a sky dnuorgkcab

Example Input: Sentence: 'a close up of a plate of food with a sandwich'. Reverse all words of length '8' in the given sentence.
Example Output:
a close up of a plate of food with a hciwdnas