It’s you do today that will make a difference in your life tomorrow.A. whatB. thatC. howD

问题补充：

It’s you do today that will make a difference in your life tomorrow.

A. what

B. that

C. how

D. which

答案：

(答案→)A. what

B. that

C. how

D. which

解析：考查主语从句与强调句型。本题实际上是一个强调句型。强调句型的基本结构为：It is/was被强调成分that/who其它成分；其最大的特点是把it is/was…that/who…去掉，句子仍然成立。强调句型强调的是主语从句what you do today。这个主语从句是由what引导，what在句中也作为do的宾语。句意：你今天做的事情会对你明天的生活产生很大的影响。故A正确。