# Write a function that takes a sentence,
# check if there are repeated words.
# Your program will return a list of the repeated words
# Note: repeated words are words that occur multiple times in consecutive
# multiple occurrences of the same word should be reported once
#
# If there is no repeated word or the file is empty,
# return []
#
# For example, if a sentence contains
#      'I will do more more practice and my bring my my my questions to class'
#
# Your program will return
#      ['more', 'my']
#
# Note that your choice of data structure can affect the return formats.
# For this practice, any formats would be fine.
#
# You should consider:
# - What data structure would you be using?
# - Why would you use that data structure?
#


def check_repeated_words(sentence):
    result = []

    words = sentence.split()

    for i in range(0, len(words)-1):
        if words[i] == words[i+1]:
            if words[i] not in result:
                result.append(words[i])

    return result


print(check_repeated_words('I will do more more practice and my bring my my my questions to class'))