They .... on a roller coaster (+) A. haven´t ...

[ Present Perfect Tense ]

They …. on a roller coaster (+)

A. haven´t being

B. hasn´t been

C. has been

D. have been

Select your answer:
A B C D E

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Countable & Noncountable Nouns Zero Conditional First Conditional Gerund or Infinitive Paired Conjunction Comparison of Adjective and Adverb Correlative Conjunction Reporting Verbs Gerund, Participle, Infinitive, or Appositive Preposition of Time

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