Understand how to use verbs in the present perfect tense by filling in the blanks with the correct forms for the given exercise.
Present Perfect: Today I have complained.
In the given exercise, the blanks need to be filled with appropriate verbs in the present perfect tense. For instance, "The alarm clock has not gone off at 7:50 a.m."
Therefore, pay attention to the verb forms in the present perfect construction to accurately complete the sentences.
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