You have a pen.My mom has a pen.your brother has pen.we have

You have a pen.- Do you have a pen
My mom has a pen.- Does your mom have a pen
your brother has pen.- Does your brother have a pen
we have a pen - Do you have a pen
不明白的再问哟,请及时采纳,多谢! 再答： 1. Yes, we do. No, we don't. 2. Yes,she does. No, she doesn't. 3. Yes, he does. No, he doesn't. 4. Yes, we do. No, we don't.
再问： 谢谢。效率超高啊.Lily has a pen. Lily-莉莉。His cat has a baseball。这俩句子改一般疑问句，并回答。第一个和第四个应该是Yes,I do.老师是这么教学的，你注意点。以后可能会用上
再答： 哈哈，多谢赐教哟 Lily has a pen。- Does Lily have a pen ? His cat has a baseball.- Does his cat have a baseball ?