You will be given two sentences. One of them is created by paraphrasing the original one, with changes on an aspect, or using synonyms. Your task is to decide what is the difference between two sentences. Types of change are explained below:
 Tense: The verbs in the sentence are changed in tense.
Number: Plural nouns, verbs and pronouns are changed into single ones or the other way around.
Voice: If the verbs are in active voice, they're changed to passive or the other way around.
Adverb: The paraphrase has one adverb or more than the original sentence.
Gender: The paraphrase differs from the original sentence in the gender of the names and pronouns.
Synonym: Some words or phrases of the original sentence are replaced with synonym words or phrases. Changes in the names of people are also considered a synonym change. Classify your answers into Tense, Number, Voice, Adverb, Gender, and Synonym.
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Question: original sentence: Joe paid the detective after he delivered the final report on the case . paraphrase: Joe is paying the detective after he delivered the final report on the case .

Answer: Tense


Question: original sentence: Fred was supposed to run the dishwasher , but he put it off , because he wanted to watch TV . But the show turned out to be boring , so he changed his mind and turned it off . paraphrase: Fred was actually supposed to run the dishwasher , but he carelessly put it off , because he wanted to watch TV . But the show apparently turned out to be boring , so he changed his mind and turned it off .

Answer: Adverb


Question: original sentence: Ann asked Mary what time the library closes , but she had forgotten . paraphrase: Ann is asking Mary what time the library closes , but she is forgetting .

Answer:
Tense