[ Articles ]
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:
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