[ Grammar ]
We also have an evacuation plan _______ we need to get everyone off the rig quickly.
A. when
B. if
C. unless
D. in case

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Conjunctions › ViewMatt went to the beach, ___ he learned to surf.
A. or
B. and
C. but
D. for
Adverb Clauses › View
He couldn’t play soccer __________ he hurt his ankle.
A. if
B. before
C. as
D. unless