My best bet would to go with 'were' because they sound similar and it just seems more professional.
The protagonist is the main person in the literary work, that is usually followed during the work and who often has to face a conflict or a difficulty.
In "The Little Match Girl" it's the girl herself: <span>b. The little match girl</span>
Geology is an earth science that studies particularly everything pertaining to the composition of the Earth, its ground, soil, water, rocks, anything that is pertaining to the characteristics of the Earth, and sometimes other planets. There are many tasks that geologists perform, but in a nutshell, they work mostly with governments, educational institutions such as universities, and most particularly the construction, oil, gas and mineral industries, studying the composition of the ground and other components of the earth, to establish the possiblity of mineral, oil and gas presence, the usefulness of a terrain for safe construction and also to build models that foretell possible natural disasters like earthquakes, and others. These are just a few of the many jobs performed by geologists, but two specific ones are: A: prepares scaled drawings of construction sites for clients, as they are the ones who, with mathematical models and earth-structure study, can tell if something can be built or not in a terrain, and C: Investigates the formation process of rocks, as this is basically the backbone of geology, the study of the composites of the earth.
Hey there!
This link is All About the topic sentence of a paragraph:
http://www.csun.edu/~hcpas003/topic.html
Hope it helps!
