1. What is the best way to combine sentences 7 and 8? A. I am a highly active member of our high school's student council, but this year I held the office of Treasurer.
(but: is a contrasting conjunction)
B. I am a highly active member of our high school's student council this year, I am holding the office of
Treasurer. (verb tense error: I am holding is present progressive - the text is written in present perfect tense)
C. I am a highly active member of our high school's student council this year I held the office of Treasurer. (Run-
on sentence)
D. I am a highly active member of our high school's student council; this year I held the office of Treasurer. (the
tense is aligned to the text and the semicolon links to independent sentences to form a variety of sentences)

She took up a scalpel and slit the monkey's abdomen, making a slow and gentle cut, keeping the blade well away from her gloved fingers. the spleen was puffed up and tough, leathery, like a globe of smoked salami. she did not see any bloody lesions inside this monkey. she had expected that the monkey's interior would be a lake of blood, but no, this monkey looked all right, it had not bled into itself. if the animal had died of ebola, this was not a clear case. she opened up the intestine. there was no blood inside it. the gut looked okay. then she examined the stomach. there she found a ring of bleeding spots at the junction between the stomach and the small intestine. this could be a sign of ebola, but it was not a clear sign. it could also be a sign of simian fever, not ebola. therefore, she could not confirm the presence of ebola virus in this animal based on a visual inspection of the internal organs during necropsy.