[ Modal Verb ]
The exams are next week. I ______ work harder because I want to get high scores.
A. must
B. have to

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Grammar › ViewExcuse me, may I ask you ……… question?
A. a
B. an
C. the
D. —-
Grammar › View
The number of children in need of counselling ________ every year.
A. increase
B. increases