[ Grammar and Vocabulary ]
Mary and Kate ______ 16 years old.
A. is
B. are
C. am

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Grammar › ViewMy cellphone _____ by a stranger in the park.
A. find
B. found
C. have found
D. was found
Modals of Speculation and Deduction › View
Use a modal to make a past deduction in the following sentence: ‘The movie started late, so it ____________ have been a technical issue.’
A. must have
B. should have
C. could have
D. might have