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 very large truck with people in back on a city street'. Reverse all words of length '6' in the given sentence.
Example Output: a very large truck with elpoep in back on a city teerts

Example Input: Sentence: 'white scooter sitting behind a glass display in a building'. Reverse all words of length '1' in the given sentence.
Example Output: white scooter sitting behind a glass display in a building

Example Input: Sentence: 'an adorable dog poses for a picture with its ears folded over'. Reverse all words of length '3' in the given sentence.
Example Output:
an adorable god poses rof a picture with sti ears folded over