Topics: Adverb & Compound Sentences
__________ the professor finished the lecture, the students began discussing the topic, __________ they soon realized that they were still confused.
A. Since, so
B. While, but
C. If, or
D. Once, but
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__________ she often wakes up late, she misses the school bus almost every day, __________ she will have to find an alternate mode of transportation.
A. If, and
B. Until, but
C. Although, or
D. Since, so