Which sentence uses the demonstrative correctly? A. Did You ask dad if he was finished reading that newspaper before You Cut It up for your science project? B. Did You ask dad if he was finished reading this newspaper before You Cut It up for your science project? C. Did your ask dad if he was finished reading the newspaper before You Cut It your for your science project?
The answer is A. That is a demonstrative word, which is used in past tense. The word before shows that this sentence is asking someone about the past. Hope I helped.