they did their homework after dinner否定句一般疑问句对划线部分提问 划线部分是 after dinner
问题描述:
they did their homework after dinner否定句一般疑问句对划线部分提问 划线部分是 after dinner
答
否定句:They didn't do their homework after dinner. 一般疑问句:Did they do their homework after dinner?划线提问:When did they do their homework?