They´re certanly not here now. They must ______________already A. ...

[ Modal Verbs for Speculation ]

They´re certanly not here now. They must ______________already

A. have left

B. have been leaving

Select your answer:
A B C D E

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Present/Past/Past Particple Infinitives or Gerunds Linkers and Conjunctions Suffixes (ing-ed) Sentences Mesopotamia Vocabulary Countable and Uncountable Conditionals and Modals of Probability Action vs Linking Verbs/ Verb Phrases going to Present simple or Past simple

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