Excuse me,what did you say?I said that I like your shirt.

that 可省
不可省的情况：
1.在主语从句、表语从句、同位语从句中（除宾语从句）,that 不能省.如：
That the seas are being overfished has been known for years.（主语从句）
The truth is that nobody knows who invented eyeglasses.（表语从句）
We have to face the fact that land is fragile.（同位语从句）
2.在agree,argue,hold,learn,observe,remark,suggest,indicate,conceive这种比较正式的书面语的谓语动词后,that不可省略.如：
Both candidates agree that the biggest local concern is unemployment.
Studies indicate that we have a limited amount of self-control.
3.在it作形式宾语的宾语从句前,that不可省.如：
They found it difficult that they would finish their work in two days.
4.在由and或or所连接的两个宾语从句时,第一个从句中的that可以省；而第二个从句中的that不能省.
It is depressing to think (that) life is purposeless and that evolution has no higher destination.
通过以上对that可省可不省的情况的总结,相信对that在从句中的作用有了更清晰的认识,但要记住一点,GMAT中宾语从句引导词that是不能省的,高中语法只要记住不能省的情况就可以了.

that 是可以省略的，这里的that引导的是定语从句，因为后面的那个句子是个完整的句子。当that引导完整句子的时候，that可以省略。
good luck~！：）

that 不能省略，它是用来引导后面的宾语从句

你好。that是可以省略的。不过如果你想表达我说过什么什么，如果你和老外这么讲，他们能够听懂，不过会以为你发神经，哈哈。其实更地道的说法是I was like…比如你要说，我说她是个美女。你千万别说I said she's a hottie,你得说I was like she's a hottie.我不知道英国佬澳洲佬是不是这么说，不过加拿大和美国人肯定这么讲，我基本没听过他们说I said 或者...

that 可以省略，无语法错误。
（that）I like your shirt. 是宾语从句。