Now combine each of the following pairs of sentences, using a non-restrictive attributive clause.1 The credit card is in my wallet. You can find it in the kitchen cabinet drawer._____________________________.2 Personal computers have come quite a long way. They were actually invented in 1964._____________________________.3 My dearest friend ignored my advice. This totally surprised me._____________________________.4 I went to London with Emily White. She lives next door._____________________________.5 I lent some money to Jack. His house was destroyed in the earthquake._____________________________.6 In the past six years I lived in six different houses. Actually this didn't bother me much.

我们来逐题分析并解答。题目要求是：用非限制性定语从句（non-restrictive attributive clause）合并每一对句子。

非限制性定语从句是对主句的补充说明，不能省略关系代词或关系副词，通常用逗号与主句隔开。常见的关系代词有：who, whom, whose, which, where, when 等。

1. The credit card is in my wallet. You can find it in the kitchen cabinet drawer.

分析：
第一个句子的“my wallet”是地点，第二个句子说“you can find it in the kitchen cabinet drawer”，这个“it”指的是“my wallet”。所以我们可以把“my wallet”作为先行词，用“in which”或“where”引导非限制性定语从句。

合并：
The credit card is in my wallet, which you can find in the kitchen cabinet drawer.

> 解释：“which”指代“my wallet”，从句补充说明钱包的位置。

2. Personal computers have come quite a long way. They were actually invented in 1964.

分析：
第二个句子的“they”指“personal computers”，我们可以把“personal computers”作为先行词，用“which”引导非限制性定语从句，说明它们是在1964年被发明的。

合并：
Personal computers have come quite a long way, which were actually invented in 1964.

> 注意：这里有个语法错误！“which”在从句中作主语，指“personal computers”，但“which were invented”是对的，但“which”不能指代整个主句，而应指名词。不过“personal computers”是复数，用“which”是正确的。

但更自然的表达是把第二句作为补充信息，修饰“personal computers”：

正确合并：
Personal computers have come quite a long way, which were actually invented in 1964.

> 但严格来说，逻辑上有点问题：是“它们被发明于1964年”推动了发展，但“which”引导的从句修饰“personal computers”是可以接受的。

更准确、更自然的表达是：
Personal computers, which were actually invented in 1964, have come quite a long way.

> 这样更符合英语习惯：把补充信息放在中间，主句结构更清晰。

但题目要求是“合并句子”，顺序可以调整。我们选择更自然的版本：

Personal computers, which were actually invented in 1964, have come quite a long way.

3. My dearest friend ignored my advice. This totally surprised me.

分析：
第二个句子“this totally surprised me”中的“this”指前面整件事，即“朋友无视我的建议”。因此，我们可以用“which”引导非限制性定语从句，指代前面整个句子。

合并：
My dearest friend ignored my advice, which totally surprised me.

> “which”指代“my dearest friend ignored my advice”这件事。

4. I went to London with Emily White. She lives next door.

分析：
“Emily White”是人名，第二个句子说明她住在我隔壁。我们可以用“who”引导非限制性定语从句修饰“Emily White”。

合并：
I went to London with Emily White, who lives next door.

> “who”指代Emily White，从句补充说明她的住处。

5. I lent some money to Jack. His house was destroyed in the earthquake.

分析：
“Jack”是人，第二个句子说“他的房子在地震中被毁了”。我们可以用“whose”引导从句，表示“Jack的……”。

合并：
I lent some money to Jack, whose house was destroyed in the earthquake.

> “whose”表示“Jack's”，修饰“house”。

6. In the past six years I lived in six different houses. Actually this didn't bother me much.

分析：
第二个句子中的“this”指前面“我六年住了六个不同的房子”这件事。因此，用“which”引导非限制性定语从句，指代整个主句。

合并：
In the past six years I lived in six different houses, which didn't bother me much.

> “which”指代前面整件事，表示“这并不太困扰我”。

最终答案：

1. The credit card is in my wallet, which you can find in the kitchen cabinet drawer.
2. Personal computers, which were actually invented in 1964, have come quite a long way.
3. My dearest friend ignored my advice, which totally surprised me.
4. I went to London with Emily White, who lives next door.
5. I lent some money to Jack, whose house was destroyed in the earthquake.
6. In the past six years I lived in six different houses, which didn't bother me much.

\boxed{
\begin{aligned}&1.\ \text{The credit card is in my wallet, which you can find in the kitchen cabinet drawer.} \\&2.\ \text{Personal computers, which were actually invented in 1964, have come quite a long way.} \\&3.\ \text{My dearest friend ignored my advice, which totally surprised me.} \\&4.\ \text{I went to London with Emily White, who lives next door.} \\&5.\ \text{I lent some money to Jack, whose house was destroyed in the earthquake.} \\&6.\ \text{In the past six years I lived in six different houses, which didn't bother me much.}\end{aligned}
}