您好，把含有实义动词（句中washed）句子改为一般疑问句时要借用助动词do的形式（一般过去时的句子中借用did）并置于句首，后面的谓语动词用原形。即，
Did she wash her clothes yesterday?
第一个过去式改一般疑问句 就把Did这个助动词提前就好了，Did she wash her clothes yesterday?
第二个一般现在时改疑问句用does，就是Does she wash her clothes on Sundays?
Did she wash her clothes yesterday?
一般疑问句：
Did she wash her clothes yesterday?
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