[ Past Modals ]
“What about someone with a key? A member of staff, perhaps?”
“It ___ have been one of the staff as I’m the only person with a key.”
A. must
B. can’t
Select your answer:

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Passive Voice and Relative ClausesSentence Adverbs & Third ConditionalThird ConditionalParticiple - ing/ edGrammar: so and suchPrefixes SuffixesFuture Tense VocabularyA(n), the, no articlePresent Simple vs Past SimpleAdverbs of Manner, Likes and PreferencesOther quiz:
Grammar › Viewten, eleven,
A. fourteen
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Vocabulary › View
Person thought to be capable of committing a crime.
A. suspense
B. suspect
C. victim
D. evidence
