I bought a red case.She bought a red case,too.（同意句转换） I bought a case

I bought a red case.She bought a red case,too.（同意句转换） I bought a case
I bought a red case.She bought a red case,too.（同意句转换） I bought a case

I bought a red case.She bought a red case,too.（同意句转换） I bought a case
So did her. 她也是

1.I bought a red case.She also bought a red case.
2.I bought a red case,so did she.

I bought a case as red as She did.

I bought a red case as well as her.