老师您好！

The only way to do this.= There was only one way ______ doing this.

A.in  B.of  C.by  D.to

前半句是不定式作后置定语修饰 the only way, 我对题目的理解是在后半句也同样选择相关系的介词来修饰only one way，感觉4个介词都有接doing的，如何选择呢？为什么?

盼复！

解答如下：

因为后面已经使用了“动名词doing" 因此后面必须使用 way of doing sth作后置定语修饰和限制。

the way 可以接以下3种不同后置定语修饰

(1)介词短语短语作后置定语修饰/限定(the way of doing sth)

We couldn't contact you— we had no way of knowing where you were.
我们联络不上你——我们无法知道你在哪里。

I wish I knew a way of making money quickly.
但愿我懂得些快速致富的手段。

He had a strange way of making his classes lively and interesting.
他有一种奇特的办法,能使他上的课生动有趣。

Freezing isn't a bad way ofpreserving food.

冷冻不失为一种保存食物的好方法。

Another way of making new friends is to go to an evening class. 

另一种交友的办法就是去上夜校。

(2)动词不定式作后置定语修饰/限定(the way to do sth)

What is the best way to clean this?
清理这个最好的方法是什么?

She showed them the way to do it.
她向他们示范做这件事的方法。

Try to find your own way to express the idea .
尽量用你自己的语言来表达这个意见。

特别备注：前面有形容词物主代词修饰时，后面只能接介词短语作后置定语

one's way of doing sth 某人作某事的方式/方法

Rectification means correcting one's way of thinking and style of work.  

整风就是整顿思想作风和工作作风.

As for flavor of speech, it all depends on one's way of reading.  

讲到谈吐的风味, 那完全要看一个人读书的方法如何.

The space concept in geography decides that one's way of thinking bears features of space awareness.  

地理学科的空间性质决定了其思维方式的空间特色.

(3)定语从句作后置定语修饰/限制

A:the way 先行词在定语从句充当方式状语3种情况

(1)the way sb do sth某人作某事的方式/方法

This is the way he did it.
这就是他做此事的方法。

(2)the way that sb do sth某人做某事方式/方法

The way that you're doing it is completely crazy.
你这种做法,简直是发疯了。

I don't like the way that you laugh at her.
我不喜欢你用那样的态度嘲笑她。

They didn't do it the way that we do now.
他们以往做这件事不像我们现在这样做。

I'm disgusted with the way that he was treated.  

他受到如此对待让我气愤。

(3)the way in which sb do sth 某人做某事的方式/方法

The way in which we work has undergone a complete transformation in the past decade.  

在过去的十年里，我们的工作方式经历了彻底的变革。

There were several theories about the way in which the fire started. 

火是为何发生的,有好几种说法.

That is a fair approximation of the way in which the next boss is being chosen. 

那和下一任老板的选任方式相当类似。

The way in which they dress is dictated by very rigid fashion rules.  

他们的着装受到时尚规则的严格限制。

B:the way被关系代词代替并在定语从句充当主语，宾语，表语

He has many ways that make his lesson lively and interesting.（作主语）

He like the way that his teacher told him.(作宾语）