[ Modals of Deduction ]
They ___ have gone home early. The office is empty.
A. must
B. might
C. could
D. All of the above

Random Topics:
Passive Voice & TensesModalsSimple Past Tense (was/were)Tenses - Present and PastGrammar and Sentence CorrectionPast Perfect and Past Perfect Continuous TensePast Simple and Past ProgressiveVerb + InfinitiveSimple Present vs Present ProgresiveModals and PhrasesOther quiz:
Mixed Conditionals › ViewIf you don’t get up right now, you _____.
A. are going to be late
B. will be late
C. would be late
D. won’t be late
Subject-Verb Agreement › View
Either my mother or my father ____ coming to the meeting.
A. is
B. are
C. were
Western Europe Countries › ViewWhat is the capital of Sweden?
A. Berlin
B. Oslo
C. Helsinki
D. Stockholm
Grammar › View
. If my colleagues had wanted my opinion, they _______ it.
A. would have asked for
B. would have asked
C. have asked about
D. had asked
