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.

Sentence: 'a guy looks at his computer while sitting at his desk'. Remove all words of length '3' in the given sentence.
a looks at computer while sitting at desk

Sentence: 'a black cat curled up to a shoe on a rug'. Remove all words of length '2' in the given sentence.
a black cat curled a shoe a rug

Sentence: 'someone that is skateboarding down a concrete road'. Remove all words of length '7' in the given sentence.

that is skateboarding down a concrete road