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.

Sentence: 'a large eared dog sitting on an office chair'. Reverse all words of length '3' in the given sentence.
a large eared god sitting on an office chair

Sentence: 'teenagers riding skateboards in a concrete skate park'. Reverse all words of length '1' in the given sentence.
teenagers riding skateboards in a concrete skate park

Sentence: 'three people going through a wheelbarrow full of green bananas'. Reverse all words of length '7' in the given sentence.

three people going hguorht a wheelbarrow full of green sananab