Settings in gothic works are usually marked by darkness, broodiness, death, usually being old decrepit castles or cemeteries.
The answer is repair because repairs would be in a sentence like we made 15 repairs in one day.
Enzymes are made from amino acids and they are proteins. When an enzyme is formed it is made by stringing together between 100 to 1000 amino acids in a very specific unique order.
First person view.You can tell because she’s using words like “I” that shows that she is speaking from her own point of view.