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: 'an elephant eating a tree branch in a bare field'. Remove all words of length '2' in the given sentence.
Example Output: elephant eating a tree branch a bare field

Example Input: Sentence: 'the military vehicles rides on the expressway next to the semi'. Remove all words of length '2' in the given sentence.
Example Output: the military vehicles rides the expressway next the semi

Example Input: Sentence: 'a long red box holding little plants surrounded by a tomato cage'. Remove all words of length '7' in the given sentence.
Example Output:
a long red box little plants surrounded by a tomato cage