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 large commuter bus stops at a bus stop'. Reverse all words of length '2' in the given sentence.
Example Output: a large commuter bus stops ta a bus stop

Example Input: Sentence: 'this is people standing in a field with kites'. Reverse all words of length '8' in the given sentence.
Example Output: this is people gnidnats in a field with kites

Example Input: Sentence: 'the man talks on a cell phone far from three others sitting on a blanket'. Reverse all words of length '5' in the given sentence.
Example Output:
the man sklat on a cell enohp far from eerht others sitting on a blanket