The present and the past are similarly related by the fact that you know what happened. For example you know what’s going to happen to you right now? You mostly do. Do you know what happened in the past? Yes.
Answer:
He opens up a story told about a Wedding
Answer:
<em>"</em><em>She is enrolling in swim class because of this.</em><em>"</em><em> </em> uses progressive tense verb.
The main thing that this question is asking is which sentence does not have a formal tone. A formal tone for research writing usually means using more professional (instead of casual, everyday) language and free of your own opinions.
This means choice D is inappropriate because it is opinionated. Using "I think" is not formal tone.
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Answer: D) I think one of the most frustrating things about owning a cat is that they don't obey many commands.