[ Modal Verbs ]
Sheila doesn’t go to work today. She _________ be ill.
A. have to
B. shall
C. must

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Grammar › ViewChoose the correct sentence that uses a third-person-singular subject.
A. John and Mike swim in the lake every summer.
B. They fish at the lake in the summer, too.
C. John catches more fish than Mike.
Vocabulary › View
The movie was so ______ that he left the theater early.
A. exciting
B. inspiring
C. bright
D. dull
