[ Modal Verbs ]
From that distance he _____ have made out who was involved in the incident.
A. mustn’t
B. shouldn’t
C. couldn’t
D. oughtn’t to

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Article and Order of AdjctiveModals and Active and Passive VoiceGrammar - Present Perfect TenseConjunctions in Complex SentencesApologizingPast Continuous vs Past SimpleCoordinating ConjunctionFuture PlansPunctuationModals and VocabularyOther quiz:
Grammar › ViewIt is usually considered impolite to ..
A. drop litter
B. admit a mistake
C. give a compliment
Subordinating Conjunctions › View
Do you speak English, ______ do you speak Spanish?
A. and
B. but
C. or
D. yet