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: 'several orange trees with oranges are sitting in a store'. Remove all words of length '7' in the given sentence.
Example Output: orange trees with are in a store

Example Input: Sentence: 'a brown bear is standing at the base of the tree'. Remove all words of length '3' in the given sentence.
Example Output: a brown bear is standing at base of tree

Example Input: Sentence: 'several protesters holding up a sign during an occupy movement'. Remove all words of length '10' in the given sentence.
Example Output:
several holding up a sign during an occupy movement