Question

What he said ( ) a big difference to the way of my thinking, ( )his words have a great effect on me

选项
A makes what is B does that is C makes that is
选啥 为什么

Answer 1

C, makes that is
选makes的原因是因为前半句的主语是what he said，用单数
后半句是非限制性定语从句是主句先行词的补充说明，没有从句并不影响主句意思的明确或完整，这种定语从句一般用逗号与主句分开，但是在非限制性定语从句中通常不用关系代词that，用which比较多，因为选项里没有which is, 在这种定语从句中that可以指人或物，代替who，whom，which，在从句中作主语或谓语动词的宾语, 故选 that is

Answer 2

make a difference to sb.对某人有影响
例：A false step will make a great difference to my future.
错走一步对我的前程来说会产生很大影响。
that is 也就是说，即的意思。that指的是前面那句话
例：I am 22, that is to say, I was born in 1975.
我今年22岁了，也就是说，我是 1975年出生的

Answer 3

C make a difference 固定短语。

追问

that is 啥意思

追答

那就是或者直接译为是