In this task, you need to remove 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 cat sitting on papers on top of a keyboard'. Remove all words of length '1' in the given sentence.
Example Output: cat sitting on papers on top of keyboard

Example Input: Sentence: 'a wooden structure with yellow and green  bananas'. Remove all words of length '9' in the given sentence.
Example Output: a wooden with yellow and green bananas

Example Input: Sentence: 'a person jumping a skate board in the air'. Remove all words of length '7' in the given sentence.
Example Output:
a person a skate board in the air