I think they __ got lost - surely they'd be ... | GrammarQuiz.Net

[ Modals and Modal Perfects ]

I think they __ got lost – surely they’d be here by now!

A. can have

B. should have

C. must have

Select your answer:

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Word Form & Verb Tense Temporal Conjunctions and Connectives Participle Adjectives Comparative Tenses Structure Indefinite and Definite Articles Past Perfect Tense Tenses - Auxiliaries Modals of Advice Grammar - Reflexive Pronouns

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