按要求改写句子（）

●试题二

对文法G[S]：S→a|∧|(T)；T→T，S｜S；回答问题1～问题3。

【问题1】

对文法G进行改写，然后对每个非终结符写出不带回溯的递归子程序。

【问题2】

经改写后的文法是否是LL (1) 的？指出它的预测分析表中 (1) ～ (3) 处的内容。

【问题3】

说明输入串(a，a)是否为G的句子。

They are going to look after the cat. (用What针对划线部分改写句子)

阅读下面对话，根据其内容写一篇有关Linda帮助祖父搬家的短文。要求：

1．所写短文应与对话相关内容意义相符，涵盖其要点；

2．用你自己的语言表达，可改写对话中的句子，但不可照抄原句。注意：

1．词数80词左右，开头已为你写好；

2．请将短文直接写在答题卡上的相应位置。

John: Hi， Linda. I‘ m thinking of going camping this weekend with Mary and tom. Will you join us？

Linda: I‘d like to， but I‘ m going to help my grandfather. He‘s moving out this weekend. John: Oh， is he？ That‘s an important thing. Where‘s your grandfather living now？

Linda: In a two-story house here at Morris Plains. He doesn‘t like it. It‘s too big for him.

John: What‘s the new house like， then？

Linda: It‘s a small apartment. In fact， it‘ s the smallest one here in the neighborhood（居民区）.

John: Is it near your house？

Linda: Yes， not even a mile away. He wants to be closer to me， you know.

John: Sounds like a perfect home for him. It must have taken your grandfather a long time to find the apartment.

Linda: Actually， I found this apartment for him. A year ago， he started to think about moving. He wanted a smaller apartment. He also wanted there to be a supermarket and a hospital in the neighborhood.

John: A smaller apartment and closer to his granddaughter. So， your grandfather must be glad now.

Linda: You‘re right， John.