来源:网络资源 2024-12-12 00:06:00
must, have to
must表示说话人的主观看法;而have to则表示客观需要。
mustn't意为“不可以;不允许”;don't have to意为“不必”。如:
(1)My father had to work when he was ten years old。
(2)The play is not interesting. I really must go now。
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