[ Auxiliary Words ]
I don’t know where our boss is. She _____ be in a meeting
A. might
B. must
C. should
D. shouldn’t
Select your answer:

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Modals › ViewI’m the receptionist, so I … greet all visitors.
A. need
B. need to
C. has to
D. have
Grammar › View
Gorillas don’t have spots ___ stripes.
A. and
B. but
C. or
