Because all though he knows his sister is dead, he can still hear knocking and scratching sounds coming from her coffin. She's dead, but comes back to life to haunt him causing his madness to grow stronger.
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Answer:
Us is the pronoun........

<h3><u>dear </u><u>maam </u><u>and </u><u>sir!</u></h3>
good day, today I apologize to you because I did not attend our class for 2 days because I was sick. I will make a way to catch up with our lessons, again sorry for not attending our class. Hope you understand it thanks
<h2><u>hope</u><u> it</u><u> helps</u></h2>