题目：
读短文，补全句子。
It's Saturday today. It's seven in the morning. My mother is doing morning exercises and my father is
cooking breakfast. Grandpa is reading the newspaper. Grandma is watering the flowers. My brother Jack is
still sleeping. I'm writing an e-mail to my new friend, John. We are ready for the weekend.
1. _______________ reading the newspaper.
2. _______________ writing an e-mail.
3. _______________ sleeping.
4. _______________ cooking breakfast.
5. _______________ doing morning exercises.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：a；10.11.107.254；00E0FC001105 10.11.104.159；0010A47BFE84解析： ARP分组具有如下的一些字段：HTYPE(Hardware type)。这是一个16比特字段，用来定义运行ARP的网络的类型。每一个局域网基于...
