[ Modals of Deduction ]
It ____ been food poisoning. Nobody else who ate the fish got sick.
A. must have
B. can´t have
C. might have

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Modals › ViewGeorge you …………… eat during the lesson.
A. have to
B. should
C. must
D. mustn’t
Grammar › View
Noah Webster an American Dictionary of the English Language in two volumes in 1828, and since then it ____ the recognised authority for usage in the United States.
A. published/became
B. has published/has become
C. published/was becoming
D. published/has become
Grammar › ViewWe ___ talk during the exam.
A. must
B. can
C. mustn’t
D. should
Quantifiers › View
Have you got ….. brothers or sisters?
A. some
B. any
