[ Adverb Clause ]
__________ the sun sets, the temperature drops significantly.
A. Until
B. Since
C. Although
D. After

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Mixed General Quiz › ViewVisitors to São Paulo ___ it interesting to go to Instituto Butant�, a world famous research center that produces antivenin vaccine.
a. may find
b. must find
c. ought find
d. are able to find
Past Tense › View
They _____ students at CMAA.
A. was
B. will
C. were
