Topics: Adjective Clause and Adverb Clause
A bear will only attack a human ____ threatens it.
A. where
B. who
C. which
D. what
E. when
Select your answer:

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Direct Object and Indirect ObjectReflexive pronounsAdjective or AdverbPreposition (at,in,on)Grammar for IELTSGrammar- Later/LatterConditionals and Modals of ProbabilityPast Tense, Recount Text, and Future TensePrepositions of Place & TimePassive VoicesOther quiz:
General › ViewThe newly-opened bookstore has attracted many visitors due to its _________ selection of books and magazines.
A. gigantic
B. enlarged
C. extensive
D. significant
Vocabulary › View
Which choice is the opposite of DEFINITE?
A. certain
B. limitless
C. narrow
D. inclusive
