[ Adjective Clause and Adverb Clause ]
A bear will only attack a human ____ threatens it.
A. where
B. who
C. which
D. what
E. when

Random Topics:
Simple Past Tense (was/were)Must Vs Have toGerund and InfinitivesPossessive Nounstoo / enoughRegular and Irregular AdverbSubject-Verb AgreementPronouns, Verb, ConjunctionModal AuxiliaryModal PerfectOther quiz:
Adverbs › ViewHe speaks softly. What type of adverb is this?
A. Manner
B. Time
C. Frequency
D. Place
Tenses › View
I (learn) ________ English seven years ago.
A. learned
B. did learned
C. have learnt
D. was learning
Vocabulary › ViewWhat is the opposite of ‘contrary’?
A. true
B. endless
C. dull
D. main
Simple, Complex, Compound Sentence › View
Vampire Diaries is my favorite television show, but I also love True Blood.
A. Simple Sentence
B. Compound Sentence
C. Complex Sentence
D. Compound Complex Sentence
