i think it is useful advice句中可以用the吗 I think it’s_________ useful a...

I think it's ____useful advice \u7a7a\u4e2d\u586b\u4e0d\u586b\u51a0\u8bcd\uff0c\u5982\u679c\u586b\u51a0\u8bcd\uff0c\u90a3\u4e48\u5e94\u8be5\u586b\u4ec0\u4e48

a useful book

a usual story
an unusual story
\u770b\u5b57\u6bcd\u53d1\u97f3\u662f\u5143\u97f3\u8fd8\u662f\u8f85\u97f3


\u795d\u4f60\u5b66\u4e60\u8fdb\u6b65

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不用the, 而应该用 a

i think it is a useful advice

it已经明确了所指，故不再用 the 去重复确定。a 在这里是习惯用法，英语里advice 被视作是可数的，一条建议，要说 an advice, 一条有用的建议 a useful advice.
a从来就不曾有过特指的含义，本身就是泛指。前面同学的说法是错误的。

i think it is a useful advice.
我觉得这是个有用的意见。
这里特指某个意见，应该加a。

希望采纳，你的支持是我们的动力！

一般可以不用the, it 已经指代了这个建议。

用an

advice不可数

扩展阅读：it is great fun doing ... what colour is your bag ... ten little paper rabbits ... it is important to do ... little did i know that ... think it adj to do sth ... it is natural for young ... this is my dog ... its fun doing something ...