[ 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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Maritime Vocabulary and GrammarTenses and Time MarkersTenses & PrepositionPersonal pronouns + possessive adjectives + Introgative pronounsAdjective Clause-Ing and Infinitive Verb PatternsPossessive Adjectives VS Possessive PronounsSimple Past Tense (was/were)Complex PrepositionsGrammar and EssayOther quiz:
Types of Sentences › ViewWhat is the formula for a compound sentence?
A. One independent clause (D)
B. Two (or more) independent clauses and one dependent clause (I+I+D)
C. One independent clause and one dependent clause (I+D)
D. Two (or more) independent clauses (I+I)
Grammar › View
I am eating____ banana.
A. a
B. an
C. the
D. –
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
