Did they go to the Great Wall?和Did they went to the Great Wall?区别时态都是什么 到底哪句对 为什么Did she buy a pen?而不是 bought

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Did they go to the Great Wall?和Did they went to the Great Wall?区别时态都是什么 到底哪句对 为什么Did she buy a pen?而不是 bought
Did they go to the Great Wall?和Did they went to the Great Wall?区别
时态都是什么 到底哪句对 为什么Did she buy a pen?而不是 bought

Did they go to the Great Wall?和Did they went to the Great Wall?区别时态都是什么 到底哪句对 为什么Did she buy a pen?而不是 bought
后一句是错的.在把过去时的陈述句改成一般疑问句时,用did,动词要用原形.
did they go to the great wall?是对的.不能用went.同样 did she buy a pen 不能用bought.