do they always have lunch at noon?为什么不用have?have they always have lunch at noon?

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do they always have lunch at noon?为什么不用have?have they always have lunch at noon?

do they always have lunch at noon?为什么不用have?have they always have lunch at noon?
do they always have lunch at noon?
为什么不用have?have they always have lunch at noon?

do they always have lunch at noon?为什么不用have?have they always have lunch at noon?
have 在这里为动词
陈述句
They always have lunch at noon
而且always在此表示“总是”一般跟现在时
所有疑问句为
do they always have lunch at noon?
如果表示:他们吃过饭了吗?则应该是
Have they had lunch?

have they always- makes no sense...
do- starts off a question..
have they have- have repeated twice...incorrect

have是完成时,你认为后面跟have正确么?这是其一。
第二,根据题意,是问的一个经常进行的动作,这里显然用完成时不恰当。

此句若改为陈述句为:They always have lunch at noon.
其中的have是作为实义动词使用的,因此,变为疑问句后应将do提前。

have they always have lunch at noon?
哈哈..不伦不类