What we mean is that it won't be possible. that是否可以省略？
宾语从句中that什么时候可以省略？
1.that引导宾语从句无（精）意义,不充当句子成分常（锐）省略.但下列情况除外：（1）介词宾语从句的that不省略
（2） and连接的几个从句,第二个从句以后的从句的that不省略.He told me that he had two sons and that they both had gone to college.（3）在动词+it+宾语补足语+宾语从句结构中,that不省略.I heard it said that he had gone abroad We found it impossible that he could finish it in such a short time
2.Whether ,if 引导宾语从句：两词可互换,但是下列情形除外：
（1）whether从句中有or not
（2）whether从句做介词宾语 Everything depends on whether you agree with us
3.许多带复合宾语的句子,宾语从句经常移到句子后部,而用it做形式宾语.结构常是：主语+动词+it+形容词/名词等宾语补足语+宾语从句 We think it wrong that he told a lie to everyone
4.宾语从句的语序要用陈述句语序
False:He is wondering when can he finish this difficult job.Right:He is wondering when he can finish this difficult job.
B 有时候可以用it 作形式宾语,而把真正的宾语从句放在后面.
Bad:I thought that he could finish this job in just two hours impossible.
Good:I thought it impossible that he could finish this job in just two hours.
Bad:He left whether we should continue this project to my judgment.Good:He left it to my judgment whether we should continue this project.
C 带有宾语从句的复合句的否定形式一般是否定主句.
Bad:I think he doesn’t like the English teacher.
Good:I don’t think he likes the English teacher.
D 主句一般过去时态,从句也要用过去时态；具体细节请看第一部分.False:He wanted to know why he is crying in the corner.
Right:He wanted to know why he was crying in the corner.bu
哪些宾语从句不可以省略引导词that
1当that做learn,suggest,explain,agree,wonder,prove,mean,state,feel,hold等动词的宾语时;
2当宾语从句较长时;
3当主语状语置于主句尾,宾语从句之前时;
4当主语谓语动词(包括非谓语动词)与宾语从句之间有插入语时;
5当一个动词带有两个或两个以上宾语从句时,此时第一个that可以省略,第二个that不可以省略;
6当宾语从句中的主语是this,that或this,that做主语的定语时;
7当宾语从句是双宾语中的直接宾语时;
8当宾语从句的主语是非谓语动词或主语从句时;
9当主语中的谓语动词是固定词组时;
10当宾语从句有it做其先行词时;
11在直接引语中,转述分句把宾语从句隔开时.
在从句中什么情况下可以省略that?
宾语从句中的that可以省略,定语从句中假如引导词that在从句中充当宾语,可以省略.
例如：宾语从句：I promise that I will study hard.这里的that可以省略
定语从句 This is the factory that we visited yesterday.这里的that可以省略
但是在这句中：This is the factory that lies in Guangzhou.这里的that做主语,不能省略.
在定语从句中,有种说法叫"关宾省",意思是关系代词在限制性定语从句中作宾语可以省略,不管是that,which,who,whom
关于这句话中的that是否可以省略或者替换成which。谢谢！！！
可以
1、 定语从句中宜用that而不用which的情况
1) 先行词为all much little everything anything nothing none few the one 等不定代词；
e.g. I mean the one that was bought yesterday.
2) 先行词被形容词最高7a686964616fe4b893e5b19e31333335336436级或被only any few little no all one of等修饰时；
e.g. It’s the most important task that should be finished soon.
3) 先行词为数词或被序数词（包括last）所修饰时；
e.g. Look at these flowers. You can see the two that you gave me.
4) 先行词中既有人又有物时；
e.g. We were deeply impressed by the teachers and schools that we had visited.
5) 主语中已有who和which的；
6) 先行词在主句中做表语或关系代词在从句中做表语时；
e.g. It’s the book that will help you a lot. My hometown is no long the place that it used to be.。。
省略的话，that在从句里做宾语，可以省略
英语重句中什么时候that可以省略什么时候不可以?
1.宾语从句中,连词that只起连接作用,没有实际作用, 可以省略!...... 但是并列第二个以上的宾语从句，或有插入语时不能省略that 2.先行词it作形式宾语，从句中that不能省略 3.that在引导表语从句时不能省略 4.同位语从句多用that引导 5.that引导主语从句时不能被省略 这些是高三复习课时候我们老师讲的。。然后我自己进行的总结归纳。。基本上重要的经常考的就这些了。。可能还有一些规律我现在有点忘了。。。。。希望对你有帮助！