His strong sense of humor was such as to make everyone in the room burst out laughing.

A. so as to   B. such as to    C.so  that   D.such  that

His strong sense of humor was such as to make everyone in the room burst out laughing.【备注：such=so strong】

解答：这里such表示程度，were such表示达到了某种程度，可以理解为“such=so strong” 后面as to make为不定式作句子结果状语。可以把以上句子结构改为下面句子结构进行理解。

【1】His sense of humor was so strong as to make everyone in the room burst out laughing.【动词不定式作结果状语】
参考译文：他的幽默感是如此的强以至于使房间里的每个人都突然纵声大笑 起来。

【2】His strong sense of humor was such that everyone in the room would burst out laughing.【that引导结果状语从句作结果状语】

参考译文：他的幽默感是如此的强以至于房间里的每个人都突然纵声大笑起来。

【3】His sense of humor was so strong that it made everyone in the room burst out laughing.【that引导结果状语从句作结果状语】
参考译文：他的幽默感是如此的强以至于使房间里的每个人都突然纵声大笑 起来。

备注(1)：such不能修饰形容词，即不能使用such +形容词+that结构，但是such可以修饰名词，即such +(a/an)+名词+that结构

This issue was of such importance that we could not afford to ignore it.

这个问题十分重要，我们疏忽不得。

The weather has brought such a demand for beer that one brewery will operate over the weekend.

天气状况使得对啤酒的需求大增，一家啤酒厂周末要加班了。

This is something where you can earn such a lot of money that there is not any risk that you will lose it.

这可以让你挣一大笔钱，而且没有任何赔钱的风险。

备注(2)such可以使用倒装结构，即such+be+主语+that从句

Such is the elegance of this typeface that it is still a favorite of designers.这种字体很优美，至今仍深受设计人员喜欢。

 备注(3)so可以修饰形容词副词，可以使用so+形容词/副词+that从句

His influence is so strong that crowds of followers freeze onto him wherever he goes.  他颇有影响力,无论走到哪里,都有成群的追随者跟着他.

The wind was so strong that people were nearly blown away as they waited for bus.  风刮得很厉害,等候公共汽车的人们几乎要被风吹走.

The attack was so strong that we were required to fall back.  对方的进攻太猛烈了,我们只得退却.

I'm so tired that I can hardly walk.  我太累,简直走不动了.