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Choose the right variant:1) Where is your brother? — He _____________ be shopping but I am not sure.a) may c) mustb) is able to d) can't2) Every morning I ___________ leave home at 6 because my work starts at 7.a) ought to c) mustb) have to d) can3) Who does the shopping in your family? — ______________.a) So does my father.c) My father do.b) My father does.d) Neither my father.