that include,that,That inculde,inculding 区别？谢谢哦！

Question

1，I am familiar with MS Office that include Excel and PPT.(此句中的that 为连词吗？那么在include前应该有个代词it什么的，但在此句中被省略了吗？that include Excel and PPT为同位语从句吗？）
2， I am familiar with MS Office that capable of using Excel and PPT.（此句为同位语从句吧?）
3， I am familiar with MS Office. That inculde Excel and PPT.(这里的that是代词，代替前面的句子I am familiar with MS Office吗？）
4， I am familiar with MS Office inculding using Excel and PPT。（这里的inculding是介词吗？ inculding using Excel and PPT是在词句中作补语的作用；整个句子为简单句吗？）谢谢姐姐！

Answer 1

1. that 是定语从句的关系词。引导定语从句。代替的是MS Office
2.that capable of using Excel and PPT还是定语从句。代替的是MS Office
3.that 是代词。但是代替的是MS Office
4.正确。

Answer 2

不太清楚~