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 group of zebra standing on top of a lush green field'. Remove all words of length '3' in the given sentence.
Example Output: a group of zebra standing on of a lush green field

Example Input: Sentence: 'a room with a small fireplace and bookshelves'. Remove all words of length '9' in the given sentence.
Example Output: a room with a small and bookshelves

Example Input: Sentence: 'a slice of cake sitting on top of a white plate with a knife'. Remove all words of length '2' in the given sentence.
Example Output:
a slice cake sitting top a white plate with a knife