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: 'some people are posing for a picture in the snow mountain'. Remove all words of length '7' in the given sentence.
Example Output: some people are posing for a in the snow mountain

Example Input: Sentence: 'a black and green halloween cake with orange writing and various halloween toppings'. Remove all words of length '8' in the given sentence.
Example Output: a black and green halloween cake with orange writing and various halloween

Example Input: Sentence: 'a woman and two men looking at a laptop screen'. Remove all words of length '7' in the given sentence.
Example Output:
a woman and two men at a laptop screen