A. It's the progressive tense that indicates continuing action. It's something that's still going on, and the reason why it's called as progressive. This is formed with the "to be" verb in the present tense, and is combined with an -ing word.
"A. You know, of course, that she used to dive for her college swim team." does not have any errors in comma usage. "Of course" is almost always surrounded by commas.
Answer:
sectional.
Explanation:
the definition of sectional is 'relating to a section or subdivision of a larger whole.'
Answer:
C. 8,098 people worldwide became sick with Severe Acute Respiratory Syndrome (SARS) during the 2003 outbreak.
Explanation:
Parentheses in punctuation are used for clarification, explanation, translation, abbreviations, time intervals etc.
They are written after the term they clarify, so the option A. is incorrect.
Sentence will function just fine even if the part in brackets is left out, so the option D. is incorrect.
Besides parenthesis, there is no need for any other additional separations such as commas, so option B. is incorrect.
This leaves us with option C.
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