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: 'two hot dogs surrounded with bacon and cheese'. Reverse all words of length '6' in the given sentence.
Example Output: two hot dogs surrounded with bacon and eseehc

Example Input: Sentence: 'a child on bench sticking out her tongue'. Reverse all words of length '6' in the given sentence.
Example Output: a child on bench sticking out her eugnot

Example Input: Sentence: 'the cox is standing behind the fence alone'. Reverse all words of length '2' in the given sentence.
Example Output:
the cox si standing behind the fence alone