题目内容
17.Doctors say that exercise is important for health,but it _______ be regular exercise.( )A. | can | B. | will | C. | must | D. | may |
分析 句意:医生说锻炼对身体重要,但是必须是有规律的锻炼.
解答 答案:C.can"能够,有时会";will"表示意愿,习惯性或倾向性动作";must"必须,肯定,偏偏";may"可能,祝愿,征求许可".根据常识和句意,医生说锻炼对身体重要,但是"必须"是有规律的锻炼.故选C.
点评 本题是基础题,考查情态的中must的使用.must这里表示"肯定,必须"的意思.
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