The results of the medical checkup(健康诊断) suggested that my father _____ in poor health, so the doctor suggested that he _____ smoking and take more exercise.
-----Is it good to look up every new word when I come across it in reading?
-----No. You _______ because you are likely to guess the meaning from the context.
—What do you think we can do for our aged parents?
—You do anything except that you visit them as often as possible.
don’t have to B. oughtn’t to C. mustn’t D. shouldn’t