[ Vocabulary ]
Scientists think that wild animals must ____________ in their natural habitats.
A. keep
B. to keep
C. be keeping
D. be kept
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Conjunctions › ViewIs your cat black _____ white?
A. and
B. but
C. because
D. or
E. so
Grammar › View
What is the complete predicate in the sentence?
The taxi driver stopped at the corner.
_
A. stopped at the corner.
B. taxi driver
C. stopped
D. the corner