From the place dialog you need to select 'Show import options'. Then choose your file and check the 'Track Changes' check box.
I don't think you can do this from a script.
Are you sure, have a look with story editor.
but how can bring it to front, I mean visible in the page layout, not only in the edit story.
and I want to see the underline not only strikethrough?
Here is another example where InDesign is weak. It doesn't import the track changes from Word, even though there is an option to select that importing text. FIX IN THE NEXT RELEASE PLEASE ADOBE!