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They are planning to climb _____ highest mountain.
A. a
B. an
C. the
D. no article

Random Topics:
-ed and -ing AdjectivesBare Infinitive and To InfinitiveFuture Tense - will and going toSimple Future - PassiveMixed GrammarMain Idea and Sentence StructureConjunctionsRelative ClausesModals and Semi-ModalsTime Clauses of FutureOther quiz:
Grammar › ViewChoose the correct pronoun in parentheses.
(They, Them) were the first ones on the scene.
_____
A. They
B. Them
Tenses › View
We (see) _________ that movie before. He (not finish) _________ his project yet.
A. saw, didn’t finish
B. have seen, hasn’t finished
C. see, hasn’t finished
D. have seen, didn’t finish
Verb + Infinitive or Gerund › ViewWhich is the right form to use: He needs (to study / studying) for his exams.
A. studying
B. to study
C. to studying
D. study
Modal Verbs › View
He _____ come in here, we are not doing anything important.
A. should
B. will be able to
C. can
D. must
