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 training going by a field during the daytime'. Remove all words of length '8' in the given sentence.
a going by a field during the daytime

Sentence: 'a man is riding a motorcycle down the street'. Remove all words of length '3' in the given sentence.
a is riding a motorcycle down street

Sentence: 'a man smiling holding a tennis racket'. Remove all words of length '1' in the given sentence.

man smiling holding tennis racket