People ____go to bed early.It is good for their health

题目

People ____go to bed early.It is good for their health
A.must B.can C.may D.have to
我选A,老师选D

答案

同学,为你
这一题目,must的话,带有强烈的要求,要求人早点睡觉这不符合我们的说话语气.
have to 带有建议的要求,这比较委婉的.
另外,个人的睡觉情况是不能强制要求的.以下这一类常识的情况就需要must的,你看看：

You must wash your hands before meals. It is good for your health. 饭前必须洗手,这对你的健康有好处.






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