[ Adverb & Compound Sentences ]
__________ they did research on the internet, the students presented their arguments, __________ they were able to have a meaningful discussion.
A. After, and
B. Since, or
C. When, but
D. If, or

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Subject-Verb Agreement › View(One, Several) of my sisters runs in the marathon every year.
A. One
B. Several
Grammar › View
Decided to join jazz band.
A. Independent Clause
B. NOT an Independent Clause