[ Vocabulary and Grammar ]
Polar bears are just one of several ____ of bear.
A. species
B. extinct
C. wild
D. protect
Select your answer:
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TOEFL Adjective and AdverbCan vs be able toPassive and Active VoiceDo not- Does notComparisonActive and Passive voicePrepositionCoordinating and Subordinating ConjunctionsComparative and Superlative AdjectivesOther quiz:
Modal Verbs › ViewAthletes ______________ train in a gym. It is not necessary.
A. have to
B. don’t have to
C. have
D. has to
Grammar › View
My friend insisted … for the meal.
A. to pay
B. paying
C. on paying
D. at paying